From 751195f55a507905805fb6c0dc8f6f262c405fa1 Mon Sep 17 00:00:00 2001
From: Zening Li <zeningl@student.unimelb.edu.au>
Date: Sun, 4 Apr 2021 19:36:30 +1000
Subject: [PATCH] Initial commit

---
 Automail/.classpath                           |  11 +
 Automail/.project                             |  17 +
 Automail/.settings/org.eclipse.jdt.core.prefs |  14 +
 Automail/WifiModem.jar                        | Bin 0 -> 4235 bytes
 Automail/automail.properties                  |  15 +
 Automail/bin/automail/Automail.class          | Bin 0 -> 757 bytes
 Automail/bin/automail/MailItem.class          | Bin 0 -> 1890 bytes
 Automail/bin/automail/MailPool$Item.class     | Bin 0 -> 631 bytes
 .../automail/MailPool$ItemComparator.class    | Bin 0 -> 1042 bytes
 Automail/bin/automail/MailPool.class          | Bin 0 -> 2678 bytes
 Automail/bin/automail/Robot$RobotState.class  | Bin 0 -> 1125 bytes
 Automail/bin/automail/Robot.class             | Bin 0 -> 4581 bytes
 .../ExcessiveDeliveryException.class          | Bin 0 -> 422 bytes
 .../exceptions/ItemTooHeavyException.class    | Bin 0 -> 382 bytes
 .../MailAlreadyDeliveredException.class       | Bin 0 -> 410 bytes
 Automail/bin/simulation/Building.class        | Bin 0 -> 380 bytes
 Automail/bin/simulation/Clock.class           | Bin 0 -> 510 bytes
 Automail/bin/simulation/IMailDelivery.class   | Bin 0 -> 161 bytes
 Automail/bin/simulation/MailGenerator.class   | Bin 0 -> 3797 bytes
 .../Simulation$ReportDelivery.class           | Bin 0 -> 1495 bytes
 Automail/bin/simulation/Simulation.class      | Bin 0 -> 6480 bytes
 Automail/expected.txt                         | 742 ++++++++++++++++++
 Automail/src/automail/Automail.java           |  20 +
 Automail/src/automail/MailItem.java           |  82 ++
 Automail/src/automail/MailPool.java           | 100 +++
 Automail/src/automail/Robot.java              | 176 +++++
 .../ExcessiveDeliveryException.java           |  10 +
 .../src/exceptions/ItemTooHeavyException.java |  10 +
 .../MailAlreadyDeliveredException.java        |  10 +
 Automail/src/simulation/Building.java         |  15 +
 Automail/src/simulation/Clock.java            |  18 +
 Automail/src/simulation/IMailDelivery.java    |  16 +
 Automail/src/simulation/MailGenerator.java    | 135 ++++
 Automail/src/simulation/Simulation.java       | 181 +++++
 34 files changed, 1572 insertions(+)
 create mode 100644 Automail/.classpath
 create mode 100644 Automail/.project
 create mode 100644 Automail/.settings/org.eclipse.jdt.core.prefs
 create mode 100644 Automail/WifiModem.jar
 create mode 100644 Automail/automail.properties
 create mode 100644 Automail/bin/automail/Automail.class
 create mode 100644 Automail/bin/automail/MailItem.class
 create mode 100644 Automail/bin/automail/MailPool$Item.class
 create mode 100644 Automail/bin/automail/MailPool$ItemComparator.class
 create mode 100644 Automail/bin/automail/MailPool.class
 create mode 100644 Automail/bin/automail/Robot$RobotState.class
 create mode 100644 Automail/bin/automail/Robot.class
 create mode 100644 Automail/bin/exceptions/ExcessiveDeliveryException.class
 create mode 100644 Automail/bin/exceptions/ItemTooHeavyException.class
 create mode 100644 Automail/bin/exceptions/MailAlreadyDeliveredException.class
 create mode 100644 Automail/bin/simulation/Building.class
 create mode 100644 Automail/bin/simulation/Clock.class
 create mode 100644 Automail/bin/simulation/IMailDelivery.class
 create mode 100644 Automail/bin/simulation/MailGenerator.class
 create mode 100644 Automail/bin/simulation/Simulation$ReportDelivery.class
 create mode 100644 Automail/bin/simulation/Simulation.class
 create mode 100644 Automail/expected.txt
 create mode 100644 Automail/src/automail/Automail.java
 create mode 100644 Automail/src/automail/MailItem.java
 create mode 100644 Automail/src/automail/MailPool.java
 create mode 100644 Automail/src/automail/Robot.java
 create mode 100644 Automail/src/exceptions/ExcessiveDeliveryException.java
 create mode 100644 Automail/src/exceptions/ItemTooHeavyException.java
 create mode 100644 Automail/src/exceptions/MailAlreadyDeliveredException.java
 create mode 100644 Automail/src/simulation/Building.java
 create mode 100644 Automail/src/simulation/Clock.java
 create mode 100644 Automail/src/simulation/IMailDelivery.java
 create mode 100644 Automail/src/simulation/MailGenerator.java
 create mode 100644 Automail/src/simulation/Simulation.java

diff --git a/Automail/.classpath b/Automail/.classpath
new file mode 100644
index 0000000..445b8e9
--- /dev/null
+++ b/Automail/.classpath
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11">
+		<attributes>
+			<attribute name="module" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="lib" path="WifiModem.jar"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>
diff --git a/Automail/.project b/Automail/.project
new file mode 100644
index 0000000..29e4846
--- /dev/null
+++ b/Automail/.project
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>Automail</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>
diff --git a/Automail/.settings/org.eclipse.jdt.core.prefs b/Automail/.settings/org.eclipse.jdt.core.prefs
new file mode 100644
index 0000000..f2525a8
--- /dev/null
+++ b/Automail/.settings/org.eclipse.jdt.core.prefs
@@ -0,0 +1,14 @@
+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=11
+org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
+org.eclipse.jdt.core.compiler.compliance=11
+org.eclipse.jdt.core.compiler.debug.lineNumber=generate
+org.eclipse.jdt.core.compiler.debug.localVariable=generate
+org.eclipse.jdt.core.compiler.debug.sourceFile=generate
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=warning
+org.eclipse.jdt.core.compiler.release=enabled
+org.eclipse.jdt.core.compiler.source=11
diff --git a/Automail/WifiModem.jar b/Automail/WifiModem.jar
new file mode 100644
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diff --git a/Automail/automail.properties b/Automail/automail.properties
new file mode 100644
index 0000000..a2e6ec2
--- /dev/null
+++ b/Automail/automail.properties
@@ -0,0 +1,15 @@
+# Seed
+#Seed=2020
+Seed=30006
+# Floors
+Floors=12
+# Mail_To_Create
+Mail_to_Create=200
+# Mail_Max_Weight
+Mail_Max_Weight=2000
+# The duration of receiving new mails
+Mail_Receving_Length=120
+# Robots
+Robots=3
+ChargeThreshold=0
+CommercialDisplay=false
diff --git a/Automail/bin/automail/Automail.class b/Automail/bin/automail/Automail.class
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diff --git a/Automail/bin/automail/MailItem.class b/Automail/bin/automail/MailItem.class
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index 0000000000000000000000000000000000000000..3d1e38b51eec6c8c4e1491fb8dbf424bf38c1fc0
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new file mode 100644
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diff --git a/Automail/bin/automail/MailPool.class b/Automail/bin/automail/MailPool.class
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diff --git a/Automail/bin/automail/Robot.class b/Automail/bin/automail/Robot.class
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diff --git a/Automail/bin/exceptions/ExcessiveDeliveryException.class b/Automail/bin/exceptions/ExcessiveDeliveryException.class
new file mode 100644
index 0000000000000000000000000000000000000000..0d6e88683faf2307f1bb3fe254dd791494a2bdd9
GIT binary patch
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diff --git a/Automail/bin/exceptions/ItemTooHeavyException.class b/Automail/bin/exceptions/ItemTooHeavyException.class
new file mode 100644
index 0000000000000000000000000000000000000000..7d360f113a93bcd944eb5bc9d8d26901f2713688
GIT binary patch
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diff --git a/Automail/bin/exceptions/MailAlreadyDeliveredException.class b/Automail/bin/exceptions/MailAlreadyDeliveredException.class
new file mode 100644
index 0000000000000000000000000000000000000000..85bf1e255d75951054ad85d843a11d84a881c709
GIT binary patch
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diff --git a/Automail/bin/simulation/Building.class b/Automail/bin/simulation/Building.class
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GIT binary patch
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diff --git a/Automail/bin/simulation/Clock.class b/Automail/bin/simulation/Clock.class
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GIT binary patch
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diff --git a/Automail/bin/simulation/IMailDelivery.class b/Automail/bin/simulation/IMailDelivery.class
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GIT binary patch
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diff --git a/Automail/bin/simulation/MailGenerator.class b/Automail/bin/simulation/MailGenerator.class
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diff --git a/Automail/bin/simulation/Simulation$ReportDelivery.class b/Automail/bin/simulation/Simulation$ReportDelivery.class
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diff --git a/Automail/bin/simulation/Simulation.class b/Automail/bin/simulation/Simulation.class
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literal 0
HcmV?d00001

diff --git a/Automail/expected.txt b/Automail/expected.txt
new file mode 100644
index 0000000..8075c2a
--- /dev/null
+++ b/Automail/expected.txt
@@ -0,0 +1,742 @@
+#Floors: 12
+#Created mails: 200
+#Maximum weight: 2000
+#Mail receiving length: 120
+#Robots: 3
+#Charge Threshold: 0.0
+#Charge Display: false
+#A Random Seed: 30006
+Setting up Wifi Modem
+Modem Turnon on Floor[1]
+T:   0 >   R0(0) changed from RETURNING to WAITING
+T:   0 >   R1(0) changed from RETURNING to WAITING
+T:   0 >   R2(0) changed from RETURNING to WAITING
+T:   1 > new addToPool [Mail Item:: ID:    129 | Arrival:    1 | Destination:  3 | Weight: 1812]
+T:   1 >   R0(0) changed from WAITING to DELIVERING
+T:   1 >   R0(0)-> [Mail Item:: ID:    129 | Arrival:    1 | Destination:  3 | Weight: 1812]
+T:   2 > new addToPool [Mail Item:: ID:     69 | Arrival:    2 | Destination:  6 | Weight:  439]
+T:   2 >   R1(0) changed from WAITING to DELIVERING
+T:   2 >   R1(0)-> [Mail Item:: ID:     69 | Arrival:    2 | Destination:  6 | Weight:  439]
+T:   4 > new addToPool [Mail Item:: ID:     23 | Arrival:    4 | Destination: 11 | Weight: 2000]
+T:   4 > new addToPool [Mail Item:: ID:     96 | Arrival:    4 | Destination:  8 | Weight:  490]
+T:   4 > Delivered(   1) [Mail Item:: ID:    129 | Arrival:    1 | Destination:  3 | Weight: 1812]
+T:   4 >   R0(0) changed from DELIVERING to RETURNING
+T:   4 >   R2(1) changed from WAITING to DELIVERING
+T:   4 >   R2(1)-> [Mail Item:: ID:     23 | Arrival:    4 | Destination: 11 | Weight: 2000]
+T:   5 > new addToPool [Mail Item:: ID:     46 | Arrival:    5 | Destination:  3 | Weight:  903]
+T:   5 > new addToPool [Mail Item:: ID:     85 | Arrival:    5 | Destination:  9 | Weight:  389]
+T:   5 > new addToPool [Mail Item:: ID:    108 | Arrival:    5 | Destination:  3 | Weight:  478]
+T:   7 >   R0(0) changed from RETURNING to WAITING
+T:   8 >   R0(1) changed from WAITING to DELIVERING
+T:   8 >   R0(1)-> [Mail Item:: ID:     85 | Arrival:    5 | Destination:  9 | Weight:  389]
+T:   8 > Delivered(   2) [Mail Item:: ID:     69 | Arrival:    2 | Destination:  6 | Weight:  439]
+T:   8 >   R1(0) changed from DELIVERING to RETURNING
+T:   9 > new addToPool [Mail Item:: ID:     41 | Arrival:    9 | Destination: 11 | Weight: 1544]
+T:  10 > new addToPool [Mail Item:: ID:    102 | Arrival:   10 | Destination:  1 | Weight:  676]
+T:  12 > new addToPool [Mail Item:: ID:     36 | Arrival:   12 | Destination:  3 | Weight:  710]
+T:  12 > new addToPool [Mail Item:: ID:    137 | Arrival:   12 | Destination:  7 | Weight: 2000]
+T:  13 > new addToPool [Mail Item:: ID:     10 | Arrival:   13 | Destination: 11 | Weight:  684]
+T:  13 > new addToPool [Mail Item:: ID:     97 | Arrival:   13 | Destination:  9 | Weight:  825]
+T:  13 > new addToPool [Mail Item:: ID:    134 | Arrival:   13 | Destination:  9 | Weight: 1729]
+T:  14 > new addToPool [Mail Item:: ID:    121 | Arrival:   14 | Destination:  4 | Weight: 1538]
+T:  14 >   R1(0) changed from RETURNING to WAITING
+T:  15 > new addToPool [Mail Item:: ID:      1 | Arrival:   15 | Destination:  4 | Weight: 1198]
+T:  15 > new addToPool [Mail Item:: ID:     15 | Arrival:   15 | Destination:  6 | Weight:  847]
+T:  15 > new addToPool [Mail Item:: ID:     51 | Arrival:   15 | Destination:  4 | Weight:  933]
+T:  15 > new addToPool [Mail Item:: ID:    148 | Arrival:   15 | Destination: 12 | Weight:  586]
+T:  15 > new addToPool [Mail Item:: ID:    150 | Arrival:   15 | Destination: 10 | Weight:  846]
+T:  15 >   R1(1) changed from WAITING to DELIVERING
+T:  15 >   R1(1)-> [Mail Item:: ID:    148 | Arrival:   15 | Destination: 12 | Weight:  586]
+T:  15 > Delivered(   3) [Mail Item:: ID:     23 | Arrival:    4 | Destination: 11 | Weight: 2000]
+T:  15 >   R2(0)-> [Mail Item:: ID:     96 | Arrival:    4 | Destination:  8 | Weight:  490]
+T:  16 > new addToPool [Mail Item:: ID:     12 | Arrival:   16 | Destination:  6 | Weight: 1193]
+T:  16 > new addToPool [Mail Item:: ID:     64 | Arrival:   16 | Destination:  7 | Weight: 1146]
+T:  16 > new addToPool [Mail Item:: ID:     90 | Arrival:   16 | Destination:  6 | Weight: 1392]
+T:  16 > new addToPool [Mail Item:: ID:    124 | Arrival:   16 | Destination:  7 | Weight: 1580]
+T:  16 > new addToPool [Mail Item:: ID:    130 | Arrival:   16 | Destination:  5 | Weight: 1580]
+T:  17 > new addToPool [Mail Item:: ID:     56 | Arrival:   17 | Destination:  9 | Weight: 1298]
+T:  17 > new addToPool [Mail Item:: ID:     63 | Arrival:   17 | Destination:  5 | Weight: 2000]
+T:  17 > new addToPool [Mail Item:: ID:    114 | Arrival:   17 | Destination: 12 | Weight: 1738]
+T:  17 > Delivered(   4) [Mail Item:: ID:     85 | Arrival:    5 | Destination:  9 | Weight:  389]
+T:  17 >   R0(0)-> [Mail Item:: ID:     46 | Arrival:    5 | Destination:  3 | Weight:  903]
+T:  18 > new addToPool [Mail Item:: ID:     79 | Arrival:   18 | Destination:  4 | Weight: 2000]
+T:  18 > new addToPool [Mail Item:: ID:    131 | Arrival:   18 | Destination:  2 | Weight: 1514]
+T:  19 > new addToPool [Mail Item:: ID:     22 | Arrival:   19 | Destination:  3 | Weight: 1129]
+T:  19 > Delivered(   5) [Mail Item:: ID:     96 | Arrival:    4 | Destination:  8 | Weight:  490]
+T:  19 >   R2(0) changed from DELIVERING to RETURNING
+T:  21 > new addToPool [Mail Item:: ID:     42 | Arrival:   21 | Destination:  5 | Weight:  215]
+T:  21 > new addToPool [Mail Item:: ID:    122 | Arrival:   21 | Destination: 10 | Weight: 1706]
+T:  22 > new addToPool [Mail Item:: ID:     34 | Arrival:   22 | Destination:  7 | Weight:  245]
+T:  22 > new addToPool [Mail Item:: ID:    107 | Arrival:   22 | Destination:  4 | Weight: 1290]
+T:  23 > new addToPool [Mail Item:: ID:     82 | Arrival:   23 | Destination:  6 | Weight: 1348]
+T:  24 > new addToPool [Mail Item:: ID:     62 | Arrival:   24 | Destination:  3 | Weight:  401]
+T:  24 > Delivered(   6) [Mail Item:: ID:     46 | Arrival:    5 | Destination:  3 | Weight:  903]
+T:  24 >   R0(0) changed from DELIVERING to RETURNING
+T:  25 > new addToPool [Mail Item:: ID:     33 | Arrival:   25 | Destination:  6 | Weight: 1819]
+T:  25 > new addToPool [Mail Item:: ID:    117 | Arrival:   25 | Destination: 10 | Weight: 1152]
+T:  25 > new addToPool [Mail Item:: ID:    153 | Arrival:   25 | Destination: 11 | Weight:  479]
+T:  27 >   R0(0) changed from RETURNING to WAITING
+T:  27 > Delivered(   7) [Mail Item:: ID:    148 | Arrival:   15 | Destination: 12 | Weight:  586]
+T:  27 >   R1(0)-> [Mail Item:: ID:     41 | Arrival:    9 | Destination: 11 | Weight: 1544]
+T:  27 >   R2(0) changed from RETURNING to WAITING
+T:  28 > new addToPool [Mail Item:: ID:      5 | Arrival:   28 | Destination: 10 | Weight: 1045]
+T:  28 > new addToPool [Mail Item:: ID:    123 | Arrival:   28 | Destination: 12 | Weight: 1555]
+T:  28 > new addToPool [Mail Item:: ID:    139 | Arrival:   28 | Destination:  2 | Weight:  603]
+T:  28 > new addToPool [Mail Item:: ID:    152 | Arrival:   28 | Destination:  1 | Weight:  220]
+T:  28 >   R0(1) changed from WAITING to DELIVERING
+T:  28 >   R0(1)-> [Mail Item:: ID:    114 | Arrival:   17 | Destination: 12 | Weight: 1738]
+T:  28 >   R2(1) changed from WAITING to DELIVERING
+T:  28 >   R2(1)-> [Mail Item:: ID:     10 | Arrival:   13 | Destination: 11 | Weight:  684]
+T:  29 > new addToPool [Mail Item:: ID:     13 | Arrival:   29 | Destination: 10 | Weight:  564]
+T:  29 > new addToPool [Mail Item:: ID:     54 | Arrival:   29 | Destination:  2 | Weight:  575]
+T:  29 > new addToPool [Mail Item:: ID:     73 | Arrival:   29 | Destination: 11 | Weight: 1282]
+T:  29 > new addToPool [Mail Item:: ID:     81 | Arrival:   29 | Destination:  2 | Weight: 1748]
+T:  29 > Delivered(   8) [Mail Item:: ID:     41 | Arrival:    9 | Destination: 11 | Weight: 1544]
+T:  29 >   R1(0) changed from DELIVERING to RETURNING
+T:  30 > new addToPool [Mail Item:: ID:    149 | Arrival:   30 | Destination:  6 | Weight:  436]
+T:  32 > new addToPool [Mail Item:: ID:     14 | Arrival:   32 | Destination:  3 | Weight: 1598]
+T:  32 > new addToPool [Mail Item:: ID:     68 | Arrival:   32 | Destination:  9 | Weight: 1581]
+T:  33 > new addToPool [Mail Item:: ID:     27 | Arrival:   33 | Destination: 11 | Weight:  923]
+T:  34 > new addToPool [Mail Item:: ID:    110 | Arrival:   34 | Destination:  9 | Weight: 1265]
+T:  34 > new addToPool [Mail Item:: ID:    113 | Arrival:   34 | Destination: 11 | Weight:  681]
+T:  35 > new addToPool [Mail Item:: ID:     88 | Arrival:   35 | Destination: 12 | Weight:  778]
+T:  35 > new addToPool [Mail Item:: ID:    140 | Arrival:   35 | Destination:  7 | Weight: 1468]
+T:  36 > new addToPool [Mail Item:: ID:    136 | Arrival:   36 | Destination:  6 | Weight: 1494]
+T:  36 > new addToPool [Mail Item:: ID:    146 | Arrival:   36 | Destination: 11 | Weight:  598]
+T:  37 > new addToPool [Mail Item:: ID:     78 | Arrival:   37 | Destination:  8 | Weight:  973]
+T:  37 > new addToPool [Mail Item:: ID:    143 | Arrival:   37 | Destination:  9 | Weight:  227]
+T:  38 > new addToPool [Mail Item:: ID:     44 | Arrival:   38 | Destination:  9 | Weight:  653]
+T:  38 > new addToPool [Mail Item:: ID:    100 | Arrival:   38 | Destination:  4 | Weight:  269]
+T:  39 > new addToPool [Mail Item:: ID:     58 | Arrival:   39 | Destination: 11 | Weight:  415]
+T:  39 > new addToPool [Mail Item:: ID:     74 | Arrival:   39 | Destination:  3 | Weight:  787]
+T:  39 > Delivered(   9) [Mail Item:: ID:     10 | Arrival:   13 | Destination: 11 | Weight:  684]
+T:  39 >   R2(0)-> [Mail Item:: ID:    153 | Arrival:   25 | Destination: 11 | Weight:  479]
+T:  40 > new addToPool [Mail Item:: ID:     76 | Arrival:   40 | Destination:  4 | Weight: 1385]
+T:  40 > Delivered(  10) [Mail Item:: ID:    114 | Arrival:   17 | Destination: 12 | Weight: 1738]
+T:  40 >   R0(0)-> [Mail Item:: ID:    123 | Arrival:   28 | Destination: 12 | Weight: 1555]
+T:  40 >   R1(0) changed from RETURNING to WAITING
+T:  40 > Delivered(  11) [Mail Item:: ID:    153 | Arrival:   25 | Destination: 11 | Weight:  479]
+T:  40 >   R2(0) changed from DELIVERING to RETURNING
+T:  41 > new addToPool [Mail Item:: ID:    132 | Arrival:   41 | Destination: 11 | Weight: 1193]
+T:  41 > Delivered(  12) [Mail Item:: ID:    123 | Arrival:   28 | Destination: 12 | Weight: 1555]
+T:  41 >   R0(0) changed from DELIVERING to RETURNING
+T:  41 >   R1(1) changed from WAITING to DELIVERING
+T:  41 >   R1(1)-> [Mail Item:: ID:     88 | Arrival:   35 | Destination: 12 | Weight:  778]
+T:  42 > new addToPool [Mail Item:: ID:    103 | Arrival:   42 | Destination: 12 | Weight:  323]
+T:  42 > new addToPool [Mail Item:: ID:    128 | Arrival:   42 | Destination: 12 | Weight:  943]
+T:  43 > new addToPool [Mail Item:: ID:     20 | Arrival:   43 | Destination: 11 | Weight:  972]
+T:  43 > new addToPool [Mail Item:: ID:    141 | Arrival:   43 | Destination:  5 | Weight:  362]
+T:  45 > new addToPool [Mail Item:: ID:    119 | Arrival:   45 | Destination:  1 | Weight:  302]
+T:  46 > new addToPool [Mail Item:: ID:     72 | Arrival:   46 | Destination:  1 | Weight: 1996]
+T:  49 > new addToPool [Mail Item:: ID:     18 | Arrival:   49 | Destination:  6 | Weight:  706]
+T:  49 > new addToPool [Mail Item:: ID:     99 | Arrival:   49 | Destination:  3 | Weight: 1921]
+T:  49 > new addToPool [Mail Item:: ID:    109 | Arrival:   49 | Destination:  8 | Weight:  446]
+T:  50 > new addToPool [Mail Item:: ID:    142 | Arrival:   50 | Destination:  2 | Weight:  322]
+T:  51 > new addToPool [Mail Item:: ID:     80 | Arrival:   51 | Destination:  2 | Weight:  535]
+T:  51 >   R2(0) changed from RETURNING to WAITING
+T:  52 > new addToPool [Mail Item:: ID:     16 | Arrival:   52 | Destination:  5 | Weight: 2000]
+T:  52 >   R2(1) changed from WAITING to DELIVERING
+T:  52 >   R2(1)-> [Mail Item:: ID:    103 | Arrival:   42 | Destination: 12 | Weight:  323]
+T:  53 >   R0(0) changed from RETURNING to WAITING
+T:  53 > Delivered(  13) [Mail Item:: ID:     88 | Arrival:   35 | Destination: 12 | Weight:  778]
+T:  53 >   R1(0)-> [Mail Item:: ID:     73 | Arrival:   29 | Destination: 11 | Weight: 1282]
+T:  54 > new addToPool [Mail Item:: ID:     71 | Arrival:   54 | Destination:  4 | Weight: 2000]
+T:  54 >   R0(1) changed from WAITING to DELIVERING
+T:  54 >   R0(1)-> [Mail Item:: ID:     27 | Arrival:   33 | Destination: 11 | Weight:  923]
+T:  55 > new addToPool [Mail Item:: ID:     89 | Arrival:   55 | Destination:  9 | Weight: 1749]
+T:  55 > new addToPool [Mail Item:: ID:    105 | Arrival:   55 | Destination: 12 | Weight:  799]
+T:  55 > Delivered(  14) [Mail Item:: ID:     73 | Arrival:   29 | Destination: 11 | Weight: 1282]
+T:  55 >   R1(0) changed from DELIVERING to RETURNING
+T:  57 > new addToPool [Mail Item:: ID:      7 | Arrival:   57 | Destination:  1 | Weight:  777]
+T:  57 > new addToPool [Mail Item:: ID:     65 | Arrival:   57 | Destination:  7 | Weight:  361]
+T:  57 > new addToPool [Mail Item:: ID:     84 | Arrival:   57 | Destination:  6 | Weight:  697]
+T:  58 > new addToPool [Mail Item:: ID:     35 | Arrival:   58 | Destination:  7 | Weight:  804]
+T:  61 > new addToPool [Mail Item:: ID:     40 | Arrival:   61 | Destination: 10 | Weight: 1604]
+T:  61 > new addToPool [Mail Item:: ID:     50 | Arrival:   61 | Destination:  6 | Weight:  570]
+T:  61 > new addToPool [Mail Item:: ID:     98 | Arrival:   61 | Destination:  7 | Weight: 1029]
+T:  61 > new addToPool [Mail Item:: ID:    126 | Arrival:   61 | Destination:  6 | Weight: 1101]
+T:  62 > new addToPool [Mail Item:: ID:      3 | Arrival:   62 | Destination:  3 | Weight:  678]
+T:  62 > new addToPool [Mail Item:: ID:     94 | Arrival:   62 | Destination: 12 | Weight:  793]
+T:  63 > new addToPool [Mail Item:: ID:     29 | Arrival:   63 | Destination: 11 | Weight:  842]
+T:  63 > new addToPool [Mail Item:: ID:    159 | Arrival:   63 | Destination:  8 | Weight:  690]
+T:  64 > new addToPool [Mail Item:: ID:     49 | Arrival:   64 | Destination:  5 | Weight: 2000]
+T:  64 > new addToPool [Mail Item:: ID:     91 | Arrival:   64 | Destination: 10 | Weight:  578]
+T:  64 > new addToPool [Mail Item:: ID:    157 | Arrival:   64 | Destination:  3 | Weight:  551]
+T:  64 > Delivered(  15) [Mail Item:: ID:    103 | Arrival:   42 | Destination: 12 | Weight:  323]
+T:  64 >   R2(0)-> [Mail Item:: ID:    128 | Arrival:   42 | Destination: 12 | Weight:  943]
+T:  65 > Delivered(  16) [Mail Item:: ID:     27 | Arrival:   33 | Destination: 11 | Weight:  923]
+T:  65 >   R0(0)-> [Mail Item:: ID:    113 | Arrival:   34 | Destination: 11 | Weight:  681]
+T:  65 > Delivered(  17) [Mail Item:: ID:    128 | Arrival:   42 | Destination: 12 | Weight:  943]
+T:  65 >   R2(0) changed from DELIVERING to RETURNING
+T:  66 > new addToPool [Mail Item:: ID:     70 | Arrival:   66 | Destination: 10 | Weight:  299]
+T:  66 > new addToPool [Mail Item:: ID:    111 | Arrival:   66 | Destination:  3 | Weight: 1479]
+T:  66 > Delivered(  18) [Mail Item:: ID:    113 | Arrival:   34 | Destination: 11 | Weight:  681]
+T:  66 >   R0(0) changed from DELIVERING to RETURNING
+T:  66 >   R1(0) changed from RETURNING to WAITING
+T:  67 >   R1(1) changed from WAITING to DELIVERING
+T:  67 >   R1(1)-> [Mail Item:: ID:    105 | Arrival:   55 | Destination: 12 | Weight:  799]
+T:  68 > new addToPool [Mail Item:: ID:     21 | Arrival:   68 | Destination: 12 | Weight:  992]
+T:  68 > new addToPool [Mail Item:: ID:    160 | Arrival:   68 | Destination:  6 | Weight:  832]
+T:  70 > new addToPool [Mail Item:: ID:     67 | Arrival:   70 | Destination: 11 | Weight: 1258]
+T:  71 > new addToPool [Mail Item:: ID:      8 | Arrival:   71 | Destination:  1 | Weight: 1615]
+T:  72 > new addToPool [Mail Item:: ID:     17 | Arrival:   72 | Destination:  7 | Weight:  480]
+T:  73 > new addToPool [Mail Item:: ID:     45 | Arrival:   73 | Destination:  9 | Weight:  205]
+T:  74 > new addToPool [Mail Item:: ID:      0 | Arrival:   74 | Destination: 12 | Weight: 1711]
+T:  74 > new addToPool [Mail Item:: ID:     95 | Arrival:   74 | Destination:  5 | Weight:  424]
+T:  77 > new addToPool [Mail Item:: ID:     66 | Arrival:   77 | Destination:  8 | Weight:  312]
+T:  77 >   R0(0) changed from RETURNING to WAITING
+T:  77 >   R2(0) changed from RETURNING to WAITING
+T:  78 > new addToPool [Mail Item:: ID:    147 | Arrival:   78 | Destination:  9 | Weight:  502]
+T:  78 >   R0(1) changed from WAITING to DELIVERING
+T:  78 >   R0(1)-> [Mail Item:: ID:     21 | Arrival:   68 | Destination: 12 | Weight:  992]
+T:  78 >   R2(1) changed from WAITING to DELIVERING
+T:  78 >   R2(1)-> [Mail Item:: ID:    146 | Arrival:   36 | Destination: 11 | Weight:  598]
+T:  79 > Delivered(  19) [Mail Item:: ID:    105 | Arrival:   55 | Destination: 12 | Weight:  799]
+T:  79 >   R1(0)-> [Mail Item:: ID:     94 | Arrival:   62 | Destination: 12 | Weight:  793]
+T:  80 > new addToPool [Mail Item:: ID:      2 | Arrival:   80 | Destination:  6 | Weight: 1422]
+T:  80 > new addToPool [Mail Item:: ID:    116 | Arrival:   80 | Destination:  7 | Weight:  252]
+T:  80 > Delivered(  20) [Mail Item:: ID:     94 | Arrival:   62 | Destination: 12 | Weight:  793]
+T:  80 >   R1(0) changed from DELIVERING to RETURNING
+T:  81 > new addToPool [Mail Item:: ID:     30 | Arrival:   81 | Destination:  3 | Weight:  590]
+T:  81 > new addToPool [Mail Item:: ID:     47 | Arrival:   81 | Destination:  8 | Weight:  450]
+T:  82 > new addToPool [Mail Item:: ID:    112 | Arrival:   82 | Destination:  8 | Weight: 2000]
+T:  82 > new addToPool [Mail Item:: ID:    120 | Arrival:   82 | Destination:  9 | Weight:  907]
+T:  83 > new addToPool [Mail Item:: ID:    106 | Arrival:   83 | Destination:  8 | Weight:  461]
+T:  84 > new addToPool [Mail Item:: ID:    158 | Arrival:   84 | Destination:  9 | Weight:  723]
+T:  85 > new addToPool [Mail Item:: ID:     83 | Arrival:   85 | Destination: 11 | Weight:  380]
+T:  85 > new addToPool [Mail Item:: ID:     86 | Arrival:   85 | Destination:  7 | Weight: 1137]
+T:  86 > new addToPool [Mail Item:: ID:    133 | Arrival:   86 | Destination:  3 | Weight:  743]
+T:  88 > new addToPool [Mail Item:: ID:    156 | Arrival:   88 | Destination:  8 | Weight:  703]
+T:  89 > new addToPool [Mail Item:: ID:    118 | Arrival:   89 | Destination:  2 | Weight: 1204]
+T:  89 > Delivered(  21) [Mail Item:: ID:    146 | Arrival:   36 | Destination: 11 | Weight:  598]
+T:  89 >   R2(0)-> [Mail Item:: ID:     58 | Arrival:   39 | Destination: 11 | Weight:  415]
+T:  90 > Delivered(  22) [Mail Item:: ID:     21 | Arrival:   68 | Destination: 12 | Weight:  992]
+T:  90 >   R0(0)-> [Mail Item:: ID:      0 | Arrival:   74 | Destination: 12 | Weight: 1711]
+T:  90 > Delivered(  23) [Mail Item:: ID:     58 | Arrival:   39 | Destination: 11 | Weight:  415]
+T:  90 >   R2(0) changed from DELIVERING to RETURNING
+T:  91 > Delivered(  24) [Mail Item:: ID:      0 | Arrival:   74 | Destination: 12 | Weight: 1711]
+T:  91 >   R0(0) changed from DELIVERING to RETURNING
+T:  92 >   R1(0) changed from RETURNING to WAITING
+T:  93 > new addToPool [Mail Item:: ID:     24 | Arrival:   93 | Destination: 10 | Weight: 1337]
+T:  93 >   R1(1) changed from WAITING to DELIVERING
+T:  93 >   R1(1)-> [Mail Item:: ID:    132 | Arrival:   41 | Destination: 11 | Weight: 1193]
+T:  94 > new addToPool [Mail Item:: ID:     59 | Arrival:   94 | Destination: 12 | Weight: 1790]
+T:  96 > new addToPool [Mail Item:: ID:     43 | Arrival:   96 | Destination:  7 | Weight: 1180]
+T:  96 > new addToPool [Mail Item:: ID:     77 | Arrival:   96 | Destination:  5 | Weight:  361]
+T:  97 > new addToPool [Mail Item:: ID:     19 | Arrival:   97 | Destination: 11 | Weight:  881]
+T:  97 > new addToPool [Mail Item:: ID:     75 | Arrival:   97 | Destination:  1 | Weight: 2000]
+T:  97 > new addToPool [Mail Item:: ID:    104 | Arrival:   97 | Destination:  2 | Weight:  778]
+T: 101 > new addToPool [Mail Item:: ID:      6 | Arrival:  101 | Destination:  5 | Weight: 1000]
+T: 101 > new addToPool [Mail Item:: ID:     37 | Arrival:  101 | Destination: 11 | Weight:  830]
+T: 101 > new addToPool [Mail Item:: ID:    127 | Arrival:  101 | Destination:  8 | Weight:  685]
+T: 101 > new addToPool [Mail Item:: ID:    138 | Arrival:  101 | Destination:  3 | Weight:  834]
+T: 101 >   R2(0) changed from RETURNING to WAITING
+T: 102 > new addToPool [Mail Item:: ID:     38 | Arrival:  102 | Destination: 10 | Weight:  685]
+T: 102 >   R2(1) changed from WAITING to DELIVERING
+T: 102 >   R2(1)-> [Mail Item:: ID:     59 | Arrival:   94 | Destination: 12 | Weight: 1790]
+T: 103 >   R0(0) changed from RETURNING to WAITING
+T: 104 > new addToPool [Mail Item:: ID:     31 | Arrival:  104 | Destination:  6 | Weight: 1107]
+T: 104 >   R0(1) changed from WAITING to DELIVERING
+T: 104 >   R0(1)-> [Mail Item:: ID:     67 | Arrival:   70 | Destination: 11 | Weight: 1258]
+T: 104 > Delivered(  25) [Mail Item:: ID:    132 | Arrival:   41 | Destination: 11 | Weight: 1193]
+T: 104 >   R1(0)-> [Mail Item:: ID:     20 | Arrival:   43 | Destination: 11 | Weight:  972]
+T: 105 > new addToPool [Mail Item:: ID:     28 | Arrival:  105 | Destination: 12 | Weight:  863]
+T: 105 > new addToPool [Mail Item:: ID:     87 | Arrival:  105 | Destination:  8 | Weight:  878]
+T: 105 > Delivered(  26) [Mail Item:: ID:     20 | Arrival:   43 | Destination: 11 | Weight:  972]
+T: 105 >   R1(0) changed from DELIVERING to RETURNING
+T: 106 > new addToPool [Mail Item:: ID:     32 | Arrival:  106 | Destination:  3 | Weight:  702]
+T: 108 > new addToPool [Mail Item:: ID:    125 | Arrival:  108 | Destination:  6 | Weight:  273]
+T: 108 > new addToPool [Mail Item:: ID:    154 | Arrival:  108 | Destination:  8 | Weight:  286]
+T: 109 > new addToPool [Mail Item:: ID:      4 | Arrival:  109 | Destination:  9 | Weight: 1030]
+T: 109 > new addToPool [Mail Item:: ID:     52 | Arrival:  109 | Destination:  3 | Weight:  308]
+T: 109 > new addToPool [Mail Item:: ID:     93 | Arrival:  109 | Destination:  4 | Weight:  702]
+T: 109 > new addToPool [Mail Item:: ID:    101 | Arrival:  109 | Destination:  8 | Weight:  373]
+T: 109 > new addToPool [Mail Item:: ID:    155 | Arrival:  109 | Destination:  8 | Weight: 2000]
+T: 110 > new addToPool [Mail Item:: ID:     60 | Arrival:  110 | Destination:  7 | Weight:  223]
+T: 111 > new addToPool [Mail Item:: ID:     53 | Arrival:  111 | Destination: 10 | Weight: 2000]
+T: 111 > new addToPool [Mail Item:: ID:     57 | Arrival:  111 | Destination:  1 | Weight: 1270]
+T: 112 > new addToPool [Mail Item:: ID:     55 | Arrival:  112 | Destination: 10 | Weight: 1743]
+T: 112 > new addToPool [Mail Item:: ID:    145 | Arrival:  112 | Destination: 10 | Weight:  686]
+T: 113 > new addToPool [Mail Item:: ID:     25 | Arrival:  113 | Destination: 12 | Weight:  793]
+T: 114 > Delivered(  27) [Mail Item:: ID:     59 | Arrival:   94 | Destination: 12 | Weight: 1790]
+T: 114 >   R2(0)-> [Mail Item:: ID:     29 | Arrival:   63 | Destination: 11 | Weight:  842]
+T: 115 > new addToPool [Mail Item:: ID:    115 | Arrival:  115 | Destination: 11 | Weight:  980]
+T: 115 > new addToPool [Mail Item:: ID:    144 | Arrival:  115 | Destination:  1 | Weight:  405]
+T: 115 > Delivered(  28) [Mail Item:: ID:     67 | Arrival:   70 | Destination: 11 | Weight: 1258]
+T: 115 >   R0(0)-> [Mail Item:: ID:     83 | Arrival:   85 | Destination: 11 | Weight:  380]
+T: 116 > new addToPool [Mail Item:: ID:     11 | Arrival:  116 | Destination:  9 | Weight:  879]
+T: 116 > Delivered(  29) [Mail Item:: ID:     83 | Arrival:   85 | Destination: 11 | Weight:  380]
+T: 116 >   R0(0) changed from DELIVERING to RETURNING
+T: 116 >   R1(0) changed from RETURNING to WAITING
+T: 116 > Delivered(  30) [Mail Item:: ID:     29 | Arrival:   63 | Destination: 11 | Weight:  842]
+T: 116 >   R2(0) changed from DELIVERING to RETURNING
+T: 117 > new addToPool [Mail Item:: ID:     26 | Arrival:  117 | Destination:  4 | Weight: 1164]
+T: 117 > new addToPool [Mail Item:: ID:     48 | Arrival:  117 | Destination:  7 | Weight:  412]
+T: 117 >   R1(1) changed from WAITING to DELIVERING
+T: 117 >   R1(1)-> [Mail Item:: ID:     28 | Arrival:  105 | Destination: 12 | Weight:  863]
+T: 118 > new addToPool [Mail Item:: ID:     39 | Arrival:  118 | Destination:  4 | Weight: 1282]
+T: 118 > new addToPool [Mail Item:: ID:    135 | Arrival:  118 | Destination:  3 | Weight:  373]
+T: 119 > new addToPool [Mail Item:: ID:     61 | Arrival:  119 | Destination:  2 | Weight:  747]
+T: 120 > new addToPool [Mail Item:: ID:      9 | Arrival:  120 | Destination:  5 | Weight:  678]
+T: 120 > new addToPool [Mail Item:: ID:     92 | Arrival:  120 | Destination:  2 | Weight: 1185]
+T: 120 > new addToPool [Mail Item:: ID:    151 | Arrival:  120 | Destination: 10 | Weight: 1552]
+T: 127 >   R0(0) changed from RETURNING to WAITING
+T: 127 >   R2(0) changed from RETURNING to WAITING
+T: 128 >   R0(1) changed from WAITING to DELIVERING
+T: 128 >   R0(1)-> [Mail Item:: ID:     19 | Arrival:   97 | Destination: 11 | Weight:  881]
+T: 128 >   R2(1) changed from WAITING to DELIVERING
+T: 128 >   R2(1)-> [Mail Item:: ID:    115 | Arrival:  115 | Destination: 11 | Weight:  980]
+T: 129 > Delivered(  31) [Mail Item:: ID:     28 | Arrival:  105 | Destination: 12 | Weight:  863]
+T: 129 >   R1(0)-> [Mail Item:: ID:     25 | Arrival:  113 | Destination: 12 | Weight:  793]
+T: 130 > Delivered(  32) [Mail Item:: ID:     25 | Arrival:  113 | Destination: 12 | Weight:  793]
+T: 130 >   R1(0) changed from DELIVERING to RETURNING
+T: 139 > Delivered(  33) [Mail Item:: ID:     19 | Arrival:   97 | Destination: 11 | Weight:  881]
+T: 139 >   R0(0)-> [Mail Item:: ID:     37 | Arrival:  101 | Destination: 11 | Weight:  830]
+T: 139 > Delivered(  34) [Mail Item:: ID:    115 | Arrival:  115 | Destination: 11 | Weight:  980]
+T: 139 >   R2(0)-> [Mail Item:: ID:    150 | Arrival:   15 | Destination: 10 | Weight:  846]
+T: 140 > Delivered(  35) [Mail Item:: ID:     37 | Arrival:  101 | Destination: 11 | Weight:  830]
+T: 140 >   R0(0) changed from DELIVERING to RETURNING
+T: 141 > Delivered(  36) [Mail Item:: ID:    150 | Arrival:   15 | Destination: 10 | Weight:  846]
+T: 141 >   R2(0) changed from DELIVERING to RETURNING
+T: 142 >   R1(0) changed from RETURNING to WAITING
+T: 143 >   R1(1) changed from WAITING to DELIVERING
+T: 143 >   R1(1)-> [Mail Item:: ID:    122 | Arrival:   21 | Destination: 10 | Weight: 1706]
+T: 151 >   R0(0) changed from RETURNING to WAITING
+T: 151 >   R2(0) changed from RETURNING to WAITING
+T: 152 >   R0(1) changed from WAITING to DELIVERING
+T: 152 >   R0(1)-> [Mail Item:: ID:      5 | Arrival:   28 | Destination: 10 | Weight: 1045]
+T: 152 >   R2(1) changed from WAITING to DELIVERING
+T: 152 >   R2(1)-> [Mail Item:: ID:     40 | Arrival:   61 | Destination: 10 | Weight: 1604]
+T: 153 > Delivered(  37) [Mail Item:: ID:    122 | Arrival:   21 | Destination: 10 | Weight: 1706]
+T: 153 >   R1(0)-> [Mail Item:: ID:    117 | Arrival:   25 | Destination: 10 | Weight: 1152]
+T: 154 > Delivered(  38) [Mail Item:: ID:    117 | Arrival:   25 | Destination: 10 | Weight: 1152]
+T: 154 >   R1(0) changed from DELIVERING to RETURNING
+T: 162 > Delivered(  39) [Mail Item:: ID:      5 | Arrival:   28 | Destination: 10 | Weight: 1045]
+T: 162 >   R0(0)-> [Mail Item:: ID:     13 | Arrival:   29 | Destination: 10 | Weight:  564]
+T: 162 > Delivered(  40) [Mail Item:: ID:     40 | Arrival:   61 | Destination: 10 | Weight: 1604]
+T: 162 >   R2(0)-> [Mail Item:: ID:     91 | Arrival:   64 | Destination: 10 | Weight:  578]
+T: 163 > Delivered(  41) [Mail Item:: ID:     13 | Arrival:   29 | Destination: 10 | Weight:  564]
+T: 163 >   R0(0) changed from DELIVERING to RETURNING
+T: 163 > Delivered(  42) [Mail Item:: ID:     91 | Arrival:   64 | Destination: 10 | Weight:  578]
+T: 163 >   R2(0) changed from DELIVERING to RETURNING
+T: 164 >   R1(0) changed from RETURNING to WAITING
+T: 165 >   R1(1) changed from WAITING to DELIVERING
+T: 165 >   R1(1)-> [Mail Item:: ID:     70 | Arrival:   66 | Destination: 10 | Weight:  299]
+T: 173 >   R0(0) changed from RETURNING to WAITING
+T: 173 >   R2(0) changed from RETURNING to WAITING
+T: 174 >   R0(1) changed from WAITING to DELIVERING
+T: 174 >   R0(1)-> [Mail Item:: ID:     38 | Arrival:  102 | Destination: 10 | Weight:  685]
+T: 174 >   R2(1) changed from WAITING to DELIVERING
+T: 174 >   R2(1)-> [Mail Item:: ID:     55 | Arrival:  112 | Destination: 10 | Weight: 1743]
+T: 175 > Delivered(  43) [Mail Item:: ID:     70 | Arrival:   66 | Destination: 10 | Weight:  299]
+T: 175 >   R1(0)-> [Mail Item:: ID:     24 | Arrival:   93 | Destination: 10 | Weight: 1337]
+T: 176 > Delivered(  44) [Mail Item:: ID:     24 | Arrival:   93 | Destination: 10 | Weight: 1337]
+T: 176 >   R1(0) changed from DELIVERING to RETURNING
+T: 184 > Delivered(  45) [Mail Item:: ID:     38 | Arrival:  102 | Destination: 10 | Weight:  685]
+T: 184 >   R0(0)-> [Mail Item:: ID:     53 | Arrival:  111 | Destination: 10 | Weight: 2000]
+T: 184 > Delivered(  46) [Mail Item:: ID:     55 | Arrival:  112 | Destination: 10 | Weight: 1743]
+T: 184 >   R2(0)-> [Mail Item:: ID:    145 | Arrival:  112 | Destination: 10 | Weight:  686]
+T: 185 > Delivered(  47) [Mail Item:: ID:     53 | Arrival:  111 | Destination: 10 | Weight: 2000]
+T: 185 >   R0(0) changed from DELIVERING to RETURNING
+T: 185 > Delivered(  48) [Mail Item:: ID:    145 | Arrival:  112 | Destination: 10 | Weight:  686]
+T: 185 >   R2(0) changed from DELIVERING to RETURNING
+T: 186 >   R1(0) changed from RETURNING to WAITING
+T: 187 >   R1(1) changed from WAITING to DELIVERING
+T: 187 >   R1(1)-> [Mail Item:: ID:    151 | Arrival:  120 | Destination: 10 | Weight: 1552]
+T: 195 >   R0(0) changed from RETURNING to WAITING
+T: 195 >   R2(0) changed from RETURNING to WAITING
+T: 196 >   R0(1) changed from WAITING to DELIVERING
+T: 196 >   R0(1)-> [Mail Item:: ID:    134 | Arrival:   13 | Destination:  9 | Weight: 1729]
+T: 196 >   R2(1) changed from WAITING to DELIVERING
+T: 196 >   R2(1)-> [Mail Item:: ID:     68 | Arrival:   32 | Destination:  9 | Weight: 1581]
+T: 197 > Delivered(  49) [Mail Item:: ID:    151 | Arrival:  120 | Destination: 10 | Weight: 1552]
+T: 197 >   R1(0)-> [Mail Item:: ID:     97 | Arrival:   13 | Destination:  9 | Weight:  825]
+T: 199 > Delivered(  50) [Mail Item:: ID:     97 | Arrival:   13 | Destination:  9 | Weight:  825]
+T: 199 >   R1(0) changed from DELIVERING to RETURNING
+T: 205 > Delivered(  51) [Mail Item:: ID:    134 | Arrival:   13 | Destination:  9 | Weight: 1729]
+T: 205 >   R0(0)-> [Mail Item:: ID:     56 | Arrival:   17 | Destination:  9 | Weight: 1298]
+T: 205 > Delivered(  52) [Mail Item:: ID:     68 | Arrival:   32 | Destination:  9 | Weight: 1581]
+T: 205 >   R2(0)-> [Mail Item:: ID:    110 | Arrival:   34 | Destination:  9 | Weight: 1265]
+T: 206 > Delivered(  53) [Mail Item:: ID:     56 | Arrival:   17 | Destination:  9 | Weight: 1298]
+T: 206 >   R0(0) changed from DELIVERING to RETURNING
+T: 206 > Delivered(  54) [Mail Item:: ID:    110 | Arrival:   34 | Destination:  9 | Weight: 1265]
+T: 206 >   R2(0) changed from DELIVERING to RETURNING
+T: 208 >   R1(0) changed from RETURNING to WAITING
+T: 209 >   R1(1) changed from WAITING to DELIVERING
+T: 209 >   R1(1)-> [Mail Item:: ID:    143 | Arrival:   37 | Destination:  9 | Weight:  227]
+T: 215 >   R0(0) changed from RETURNING to WAITING
+T: 215 >   R2(0) changed from RETURNING to WAITING
+T: 216 >   R0(1) changed from WAITING to DELIVERING
+T: 216 >   R0(1)-> [Mail Item:: ID:     89 | Arrival:   55 | Destination:  9 | Weight: 1749]
+T: 216 >   R2(1) changed from WAITING to DELIVERING
+T: 216 >   R2(1)-> [Mail Item:: ID:    147 | Arrival:   78 | Destination:  9 | Weight:  502]
+T: 218 > Delivered(  55) [Mail Item:: ID:    143 | Arrival:   37 | Destination:  9 | Weight:  227]
+T: 218 >   R1(0)-> [Mail Item:: ID:     44 | Arrival:   38 | Destination:  9 | Weight:  653]
+T: 219 > Delivered(  56) [Mail Item:: ID:     44 | Arrival:   38 | Destination:  9 | Weight:  653]
+T: 219 >   R1(0) changed from DELIVERING to RETURNING
+T: 225 > Delivered(  57) [Mail Item:: ID:     89 | Arrival:   55 | Destination:  9 | Weight: 1749]
+T: 225 >   R0(0)-> [Mail Item:: ID:     45 | Arrival:   73 | Destination:  9 | Weight:  205]
+T: 225 > Delivered(  58) [Mail Item:: ID:    147 | Arrival:   78 | Destination:  9 | Weight:  502]
+T: 225 >   R2(0)-> [Mail Item:: ID:    120 | Arrival:   82 | Destination:  9 | Weight:  907]
+T: 226 > Delivered(  59) [Mail Item:: ID:     45 | Arrival:   73 | Destination:  9 | Weight:  205]
+T: 226 >   R0(0) changed from DELIVERING to RETURNING
+T: 226 > Delivered(  60) [Mail Item:: ID:    120 | Arrival:   82 | Destination:  9 | Weight:  907]
+T: 226 >   R2(0) changed from DELIVERING to RETURNING
+T: 228 >   R1(0) changed from RETURNING to WAITING
+T: 229 >   R1(1) changed from WAITING to DELIVERING
+T: 229 >   R1(1)-> [Mail Item:: ID:    158 | Arrival:   84 | Destination:  9 | Weight:  723]
+T: 235 >   R0(0) changed from RETURNING to WAITING
+T: 235 >   R2(0) changed from RETURNING to WAITING
+T: 236 >   R0(1) changed from WAITING to DELIVERING
+T: 236 >   R0(1)-> [Mail Item:: ID:     11 | Arrival:  116 | Destination:  9 | Weight:  879]
+T: 236 >   R2(1) changed from WAITING to DELIVERING
+T: 236 >   R2(1)-> [Mail Item:: ID:    109 | Arrival:   49 | Destination:  8 | Weight:  446]
+T: 238 > Delivered(  61) [Mail Item:: ID:    158 | Arrival:   84 | Destination:  9 | Weight:  723]
+T: 238 >   R1(0)-> [Mail Item:: ID:      4 | Arrival:  109 | Destination:  9 | Weight: 1030]
+T: 239 > Delivered(  62) [Mail Item:: ID:      4 | Arrival:  109 | Destination:  9 | Weight: 1030]
+T: 239 >   R1(0) changed from DELIVERING to RETURNING
+T: 244 > Delivered(  63) [Mail Item:: ID:    109 | Arrival:   49 | Destination:  8 | Weight:  446]
+T: 244 >   R2(0)-> [Mail Item:: ID:    159 | Arrival:   63 | Destination:  8 | Weight:  690]
+T: 245 > Delivered(  64) [Mail Item:: ID:     11 | Arrival:  116 | Destination:  9 | Weight:  879]
+T: 245 >   R0(0)-> [Mail Item:: ID:     78 | Arrival:   37 | Destination:  8 | Weight:  973]
+T: 245 > Delivered(  65) [Mail Item:: ID:    159 | Arrival:   63 | Destination:  8 | Weight:  690]
+T: 245 >   R2(0) changed from DELIVERING to RETURNING
+T: 247 > Delivered(  66) [Mail Item:: ID:     78 | Arrival:   37 | Destination:  8 | Weight:  973]
+T: 247 >   R0(0) changed from DELIVERING to RETURNING
+T: 248 >   R1(0) changed from RETURNING to WAITING
+T: 249 >   R1(1) changed from WAITING to DELIVERING
+T: 249 >   R1(1)-> [Mail Item:: ID:     66 | Arrival:   77 | Destination:  8 | Weight:  312]
+T: 253 >   R2(0) changed from RETURNING to WAITING
+T: 254 >   R2(1) changed from WAITING to DELIVERING
+T: 254 >   R2(1)-> [Mail Item:: ID:    112 | Arrival:   82 | Destination:  8 | Weight: 2000]
+T: 255 >   R0(0) changed from RETURNING to WAITING
+T: 256 >   R0(1) changed from WAITING to DELIVERING
+T: 256 >   R0(1)-> [Mail Item:: ID:    156 | Arrival:   88 | Destination:  8 | Weight:  703]
+T: 257 > Delivered(  67) [Mail Item:: ID:     66 | Arrival:   77 | Destination:  8 | Weight:  312]
+T: 257 >   R1(0)-> [Mail Item:: ID:     47 | Arrival:   81 | Destination:  8 | Weight:  450]
+T: 258 > Delivered(  68) [Mail Item:: ID:     47 | Arrival:   81 | Destination:  8 | Weight:  450]
+T: 258 >   R1(0) changed from DELIVERING to RETURNING
+T: 262 > Delivered(  69) [Mail Item:: ID:    112 | Arrival:   82 | Destination:  8 | Weight: 2000]
+T: 262 >   R2(0)-> [Mail Item:: ID:    106 | Arrival:   83 | Destination:  8 | Weight:  461]
+T: 263 > Delivered(  70) [Mail Item:: ID:    106 | Arrival:   83 | Destination:  8 | Weight:  461]
+T: 263 >   R2(0) changed from DELIVERING to RETURNING
+T: 264 > Delivered(  71) [Mail Item:: ID:    156 | Arrival:   88 | Destination:  8 | Weight:  703]
+T: 264 >   R0(0)-> [Mail Item:: ID:    127 | Arrival:  101 | Destination:  8 | Weight:  685]
+T: 265 > Delivered(  72) [Mail Item:: ID:    127 | Arrival:  101 | Destination:  8 | Weight:  685]
+T: 265 >   R0(0) changed from DELIVERING to RETURNING
+T: 266 >   R1(0) changed from RETURNING to WAITING
+T: 267 >   R1(1) changed from WAITING to DELIVERING
+T: 267 >   R1(1)-> [Mail Item:: ID:     87 | Arrival:  105 | Destination:  8 | Weight:  878]
+T: 271 >   R2(0) changed from RETURNING to WAITING
+T: 272 >   R2(1) changed from WAITING to DELIVERING
+T: 272 >   R2(1)-> [Mail Item:: ID:    101 | Arrival:  109 | Destination:  8 | Weight:  373]
+T: 273 >   R0(0) changed from RETURNING to WAITING
+T: 274 >   R0(1) changed from WAITING to DELIVERING
+T: 274 >   R0(1)-> [Mail Item:: ID:    137 | Arrival:   12 | Destination:  7 | Weight: 2000]
+T: 275 > Delivered(  73) [Mail Item:: ID:     87 | Arrival:  105 | Destination:  8 | Weight:  878]
+T: 275 >   R1(0)-> [Mail Item:: ID:    154 | Arrival:  108 | Destination:  8 | Weight:  286]
+T: 276 > Delivered(  74) [Mail Item:: ID:    154 | Arrival:  108 | Destination:  8 | Weight:  286]
+T: 276 >   R1(0) changed from DELIVERING to RETURNING
+T: 280 > Delivered(  75) [Mail Item:: ID:    101 | Arrival:  109 | Destination:  8 | Weight:  373]
+T: 280 >   R2(0)-> [Mail Item:: ID:    155 | Arrival:  109 | Destination:  8 | Weight: 2000]
+T: 281 > Delivered(  76) [Mail Item:: ID:    137 | Arrival:   12 | Destination:  7 | Weight: 2000]
+T: 281 >   R0(0)-> [Mail Item:: ID:     64 | Arrival:   16 | Destination:  7 | Weight: 1146]
+T: 281 > Delivered(  77) [Mail Item:: ID:    155 | Arrival:  109 | Destination:  8 | Weight: 2000]
+T: 281 >   R2(0) changed from DELIVERING to RETURNING
+T: 282 > Delivered(  78) [Mail Item:: ID:     64 | Arrival:   16 | Destination:  7 | Weight: 1146]
+T: 282 >   R0(0) changed from DELIVERING to RETURNING
+T: 284 >   R1(0) changed from RETURNING to WAITING
+T: 285 >   R1(1) changed from WAITING to DELIVERING
+T: 285 >   R1(1)-> [Mail Item:: ID:    124 | Arrival:   16 | Destination:  7 | Weight: 1580]
+T: 289 >   R0(0) changed from RETURNING to WAITING
+T: 289 >   R2(0) changed from RETURNING to WAITING
+T: 290 >   R0(1) changed from WAITING to DELIVERING
+T: 290 >   R0(1)-> [Mail Item:: ID:    140 | Arrival:   35 | Destination:  7 | Weight: 1468]
+T: 290 >   R2(1) changed from WAITING to DELIVERING
+T: 290 >   R2(1)-> [Mail Item:: ID:     35 | Arrival:   58 | Destination:  7 | Weight:  804]
+T: 292 > Delivered(  79) [Mail Item:: ID:    124 | Arrival:   16 | Destination:  7 | Weight: 1580]
+T: 292 >   R1(0)-> [Mail Item:: ID:     34 | Arrival:   22 | Destination:  7 | Weight:  245]
+T: 293 > Delivered(  80) [Mail Item:: ID:     34 | Arrival:   22 | Destination:  7 | Weight:  245]
+T: 293 >   R1(0) changed from DELIVERING to RETURNING
+T: 297 > Delivered(  81) [Mail Item:: ID:    140 | Arrival:   35 | Destination:  7 | Weight: 1468]
+T: 297 >   R0(0)-> [Mail Item:: ID:     65 | Arrival:   57 | Destination:  7 | Weight:  361]
+T: 297 > Delivered(  82) [Mail Item:: ID:     35 | Arrival:   58 | Destination:  7 | Weight:  804]
+T: 297 >   R2(0)-> [Mail Item:: ID:     98 | Arrival:   61 | Destination:  7 | Weight: 1029]
+T: 298 > Delivered(  83) [Mail Item:: ID:     65 | Arrival:   57 | Destination:  7 | Weight:  361]
+T: 298 >   R0(0) changed from DELIVERING to RETURNING
+T: 298 > Delivered(  84) [Mail Item:: ID:     98 | Arrival:   61 | Destination:  7 | Weight: 1029]
+T: 298 >   R2(0) changed from DELIVERING to RETURNING
+T: 300 >   R1(0) changed from RETURNING to WAITING
+T: 301 >   R1(1) changed from WAITING to DELIVERING
+T: 301 >   R1(1)-> [Mail Item:: ID:     17 | Arrival:   72 | Destination:  7 | Weight:  480]
+T: 305 >   R0(0) changed from RETURNING to WAITING
+T: 305 >   R2(0) changed from RETURNING to WAITING
+T: 306 >   R0(1) changed from WAITING to DELIVERING
+T: 306 >   R0(1)-> [Mail Item:: ID:     86 | Arrival:   85 | Destination:  7 | Weight: 1137]
+T: 306 >   R2(1) changed from WAITING to DELIVERING
+T: 306 >   R2(1)-> [Mail Item:: ID:     60 | Arrival:  110 | Destination:  7 | Weight:  223]
+T: 308 > Delivered(  85) [Mail Item:: ID:     17 | Arrival:   72 | Destination:  7 | Weight:  480]
+T: 308 >   R1(0)-> [Mail Item:: ID:    116 | Arrival:   80 | Destination:  7 | Weight:  252]
+T: 309 > Delivered(  86) [Mail Item:: ID:    116 | Arrival:   80 | Destination:  7 | Weight:  252]
+T: 309 >   R1(0) changed from DELIVERING to RETURNING
+T: 313 > Delivered(  87) [Mail Item:: ID:     86 | Arrival:   85 | Destination:  7 | Weight: 1137]
+T: 313 >   R0(0)-> [Mail Item:: ID:     43 | Arrival:   96 | Destination:  7 | Weight: 1180]
+T: 313 > Delivered(  88) [Mail Item:: ID:     60 | Arrival:  110 | Destination:  7 | Weight:  223]
+T: 313 >   R2(0)-> [Mail Item:: ID:     48 | Arrival:  117 | Destination:  7 | Weight:  412]
+T: 314 > Delivered(  89) [Mail Item:: ID:     43 | Arrival:   96 | Destination:  7 | Weight: 1180]
+T: 314 >   R0(0) changed from DELIVERING to RETURNING
+T: 314 > Delivered(  90) [Mail Item:: ID:     48 | Arrival:  117 | Destination:  7 | Weight:  412]
+T: 314 >   R2(0) changed from DELIVERING to RETURNING
+T: 316 >   R1(0) changed from RETURNING to WAITING
+T: 317 >   R1(1) changed from WAITING to DELIVERING
+T: 317 >   R1(1)-> [Mail Item:: ID:     15 | Arrival:   15 | Destination:  6 | Weight:  847]
+T: 321 >   R0(0) changed from RETURNING to WAITING
+T: 321 >   R2(0) changed from RETURNING to WAITING
+T: 322 >   R0(1) changed from WAITING to DELIVERING
+T: 322 >   R0(1)-> [Mail Item:: ID:     90 | Arrival:   16 | Destination:  6 | Weight: 1392]
+T: 322 >   R2(1) changed from WAITING to DELIVERING
+T: 322 >   R2(1)-> [Mail Item:: ID:     33 | Arrival:   25 | Destination:  6 | Weight: 1819]
+T: 323 > Delivered(  91) [Mail Item:: ID:     15 | Arrival:   15 | Destination:  6 | Weight:  847]
+T: 323 >   R1(0)-> [Mail Item:: ID:     12 | Arrival:   16 | Destination:  6 | Weight: 1193]
+T: 324 > Delivered(  92) [Mail Item:: ID:     12 | Arrival:   16 | Destination:  6 | Weight: 1193]
+T: 324 >   R1(0) changed from DELIVERING to RETURNING
+T: 328 > Delivered(  93) [Mail Item:: ID:     90 | Arrival:   16 | Destination:  6 | Weight: 1392]
+T: 328 >   R0(0)-> [Mail Item:: ID:     82 | Arrival:   23 | Destination:  6 | Weight: 1348]
+T: 328 > Delivered(  94) [Mail Item:: ID:     33 | Arrival:   25 | Destination:  6 | Weight: 1819]
+T: 328 >   R2(0)-> [Mail Item:: ID:    149 | Arrival:   30 | Destination:  6 | Weight:  436]
+T: 329 > Delivered(  95) [Mail Item:: ID:     82 | Arrival:   23 | Destination:  6 | Weight: 1348]
+T: 329 >   R0(0) changed from DELIVERING to RETURNING
+T: 329 > Delivered(  96) [Mail Item:: ID:    149 | Arrival:   30 | Destination:  6 | Weight:  436]
+T: 329 >   R2(0) changed from DELIVERING to RETURNING
+T: 330 >   R1(0) changed from RETURNING to WAITING
+T: 331 >   R1(1) changed from WAITING to DELIVERING
+T: 331 >   R1(1)-> [Mail Item:: ID:    136 | Arrival:   36 | Destination:  6 | Weight: 1494]
+T: 335 >   R0(0) changed from RETURNING to WAITING
+T: 335 >   R2(0) changed from RETURNING to WAITING
+T: 336 >   R0(1) changed from WAITING to DELIVERING
+T: 336 >   R0(1)-> [Mail Item:: ID:     84 | Arrival:   57 | Destination:  6 | Weight:  697]
+T: 336 >   R2(1) changed from WAITING to DELIVERING
+T: 336 >   R2(1)-> [Mail Item:: ID:    126 | Arrival:   61 | Destination:  6 | Weight: 1101]
+T: 337 > Delivered(  97) [Mail Item:: ID:    136 | Arrival:   36 | Destination:  6 | Weight: 1494]
+T: 337 >   R1(0)-> [Mail Item:: ID:     18 | Arrival:   49 | Destination:  6 | Weight:  706]
+T: 338 > Delivered(  98) [Mail Item:: ID:     18 | Arrival:   49 | Destination:  6 | Weight:  706]
+T: 338 >   R1(0) changed from DELIVERING to RETURNING
+T: 342 > Delivered(  99) [Mail Item:: ID:     84 | Arrival:   57 | Destination:  6 | Weight:  697]
+T: 342 >   R0(0)-> [Mail Item:: ID:     50 | Arrival:   61 | Destination:  6 | Weight:  570]
+T: 342 > Delivered( 100) [Mail Item:: ID:    126 | Arrival:   61 | Destination:  6 | Weight: 1101]
+T: 342 >   R2(0)-> [Mail Item:: ID:    160 | Arrival:   68 | Destination:  6 | Weight:  832]
+T: 343 > Delivered( 101) [Mail Item:: ID:     50 | Arrival:   61 | Destination:  6 | Weight:  570]
+T: 343 >   R0(0) changed from DELIVERING to RETURNING
+T: 343 > Delivered( 102) [Mail Item:: ID:    160 | Arrival:   68 | Destination:  6 | Weight:  832]
+T: 343 >   R2(0) changed from DELIVERING to RETURNING
+T: 344 >   R1(0) changed from RETURNING to WAITING
+T: 345 >   R1(1) changed from WAITING to DELIVERING
+T: 345 >   R1(1)-> [Mail Item:: ID:      2 | Arrival:   80 | Destination:  6 | Weight: 1422]
+T: 349 >   R0(0) changed from RETURNING to WAITING
+T: 349 >   R2(0) changed from RETURNING to WAITING
+T: 350 >   R0(1) changed from WAITING to DELIVERING
+T: 350 >   R0(1)-> [Mail Item:: ID:    125 | Arrival:  108 | Destination:  6 | Weight:  273]
+T: 350 >   R2(1) changed from WAITING to DELIVERING
+T: 350 >   R2(1)-> [Mail Item:: ID:     63 | Arrival:   17 | Destination:  5 | Weight: 2000]
+T: 351 > Delivered( 103) [Mail Item:: ID:      2 | Arrival:   80 | Destination:  6 | Weight: 1422]
+T: 351 >   R1(0)-> [Mail Item:: ID:     31 | Arrival:  104 | Destination:  6 | Weight: 1107]
+T: 352 > Delivered( 104) [Mail Item:: ID:     31 | Arrival:  104 | Destination:  6 | Weight: 1107]
+T: 352 >   R1(0) changed from DELIVERING to RETURNING
+T: 355 > Delivered( 105) [Mail Item:: ID:     63 | Arrival:   17 | Destination:  5 | Weight: 2000]
+T: 355 >   R2(0)-> [Mail Item:: ID:     42 | Arrival:   21 | Destination:  5 | Weight:  215]
+T: 356 > Delivered( 106) [Mail Item:: ID:    125 | Arrival:  108 | Destination:  6 | Weight:  273]
+T: 356 >   R0(0)-> [Mail Item:: ID:    130 | Arrival:   16 | Destination:  5 | Weight: 1580]
+T: 356 > Delivered( 107) [Mail Item:: ID:     42 | Arrival:   21 | Destination:  5 | Weight:  215]
+T: 356 >   R2(0) changed from DELIVERING to RETURNING
+T: 358 > Delivered( 108) [Mail Item:: ID:    130 | Arrival:   16 | Destination:  5 | Weight: 1580]
+T: 358 >   R0(0) changed from DELIVERING to RETURNING
+T: 358 >   R1(0) changed from RETURNING to WAITING
+T: 359 >   R1(1) changed from WAITING to DELIVERING
+T: 359 >   R1(1)-> [Mail Item:: ID:    141 | Arrival:   43 | Destination:  5 | Weight:  362]
+T: 361 >   R2(0) changed from RETURNING to WAITING
+T: 362 >   R2(1) changed from WAITING to DELIVERING
+T: 362 >   R2(1)-> [Mail Item:: ID:     49 | Arrival:   64 | Destination:  5 | Weight: 2000]
+T: 363 >   R0(0) changed from RETURNING to WAITING
+T: 364 >   R0(1) changed from WAITING to DELIVERING
+T: 364 >   R0(1)-> [Mail Item:: ID:     77 | Arrival:   96 | Destination:  5 | Weight:  361]
+T: 364 > Delivered( 109) [Mail Item:: ID:    141 | Arrival:   43 | Destination:  5 | Weight:  362]
+T: 364 >   R1(0)-> [Mail Item:: ID:     16 | Arrival:   52 | Destination:  5 | Weight: 2000]
+T: 365 > Delivered( 110) [Mail Item:: ID:     16 | Arrival:   52 | Destination:  5 | Weight: 2000]
+T: 365 >   R1(0) changed from DELIVERING to RETURNING
+T: 367 > Delivered( 111) [Mail Item:: ID:     49 | Arrival:   64 | Destination:  5 | Weight: 2000]
+T: 367 >   R2(0)-> [Mail Item:: ID:     95 | Arrival:   74 | Destination:  5 | Weight:  424]
+T: 368 > Delivered( 112) [Mail Item:: ID:     95 | Arrival:   74 | Destination:  5 | Weight:  424]
+T: 368 >   R2(0) changed from DELIVERING to RETURNING
+T: 369 > Delivered( 113) [Mail Item:: ID:     77 | Arrival:   96 | Destination:  5 | Weight:  361]
+T: 369 >   R0(0)-> [Mail Item:: ID:      6 | Arrival:  101 | Destination:  5 | Weight: 1000]
+T: 370 > Delivered( 114) [Mail Item:: ID:      6 | Arrival:  101 | Destination:  5 | Weight: 1000]
+T: 370 >   R0(0) changed from DELIVERING to RETURNING
+T: 370 >   R1(0) changed from RETURNING to WAITING
+T: 371 >   R1(1) changed from WAITING to DELIVERING
+T: 371 >   R1(1)-> [Mail Item:: ID:      9 | Arrival:  120 | Destination:  5 | Weight:  678]
+T: 373 >   R2(0) changed from RETURNING to WAITING
+T: 374 >   R2(1) changed from WAITING to DELIVERING
+T: 374 >   R2(1)-> [Mail Item:: ID:      1 | Arrival:   15 | Destination:  4 | Weight: 1198]
+T: 375 >   R0(0) changed from RETURNING to WAITING
+T: 376 >   R0(1) changed from WAITING to DELIVERING
+T: 376 >   R0(1)-> [Mail Item:: ID:     79 | Arrival:   18 | Destination:  4 | Weight: 2000]
+T: 376 > Delivered( 115) [Mail Item:: ID:      9 | Arrival:  120 | Destination:  5 | Weight:  678]
+T: 376 >   R1(0)-> [Mail Item:: ID:    121 | Arrival:   14 | Destination:  4 | Weight: 1538]
+T: 378 > Delivered( 116) [Mail Item:: ID:    121 | Arrival:   14 | Destination:  4 | Weight: 1538]
+T: 378 >   R1(0) changed from DELIVERING to RETURNING
+T: 378 > Delivered( 117) [Mail Item:: ID:      1 | Arrival:   15 | Destination:  4 | Weight: 1198]
+T: 378 >   R2(0)-> [Mail Item:: ID:     51 | Arrival:   15 | Destination:  4 | Weight:  933]
+T: 379 > Delivered( 118) [Mail Item:: ID:     51 | Arrival:   15 | Destination:  4 | Weight:  933]
+T: 379 >   R2(0) changed from DELIVERING to RETURNING
+T: 380 > Delivered( 119) [Mail Item:: ID:     79 | Arrival:   18 | Destination:  4 | Weight: 2000]
+T: 380 >   R0(0)-> [Mail Item:: ID:    107 | Arrival:   22 | Destination:  4 | Weight: 1290]
+T: 381 > Delivered( 120) [Mail Item:: ID:    107 | Arrival:   22 | Destination:  4 | Weight: 1290]
+T: 381 >   R0(0) changed from DELIVERING to RETURNING
+T: 382 >   R1(0) changed from RETURNING to WAITING
+T: 383 >   R1(1) changed from WAITING to DELIVERING
+T: 383 >   R1(1)-> [Mail Item:: ID:    100 | Arrival:   38 | Destination:  4 | Weight:  269]
+T: 383 >   R2(0) changed from RETURNING to WAITING
+T: 384 >   R2(1) changed from WAITING to DELIVERING
+T: 384 >   R2(1)-> [Mail Item:: ID:     71 | Arrival:   54 | Destination:  4 | Weight: 2000]
+T: 385 >   R0(0) changed from RETURNING to WAITING
+T: 386 >   R0(1) changed from WAITING to DELIVERING
+T: 386 >   R0(1)-> [Mail Item:: ID:     26 | Arrival:  117 | Destination:  4 | Weight: 1164]
+T: 387 > Delivered( 121) [Mail Item:: ID:    100 | Arrival:   38 | Destination:  4 | Weight:  269]
+T: 387 >   R1(0)-> [Mail Item:: ID:     76 | Arrival:   40 | Destination:  4 | Weight: 1385]
+T: 388 > Delivered( 122) [Mail Item:: ID:     76 | Arrival:   40 | Destination:  4 | Weight: 1385]
+T: 388 >   R1(0) changed from DELIVERING to RETURNING
+T: 388 > Delivered( 123) [Mail Item:: ID:     71 | Arrival:   54 | Destination:  4 | Weight: 2000]
+T: 388 >   R2(0)-> [Mail Item:: ID:     93 | Arrival:  109 | Destination:  4 | Weight:  702]
+T: 389 > Delivered( 124) [Mail Item:: ID:     93 | Arrival:  109 | Destination:  4 | Weight:  702]
+T: 389 >   R2(0) changed from DELIVERING to RETURNING
+T: 390 > Delivered( 125) [Mail Item:: ID:     26 | Arrival:  117 | Destination:  4 | Weight: 1164]
+T: 390 >   R0(0)-> [Mail Item:: ID:     39 | Arrival:  118 | Destination:  4 | Weight: 1282]
+T: 391 > Delivered( 126) [Mail Item:: ID:     39 | Arrival:  118 | Destination:  4 | Weight: 1282]
+T: 391 >   R0(0) changed from DELIVERING to RETURNING
+T: 392 >   R1(0) changed from RETURNING to WAITING
+T: 393 >   R1(1) changed from WAITING to DELIVERING
+T: 393 >   R1(1)-> [Mail Item:: ID:    108 | Arrival:    5 | Destination:  3 | Weight:  478]
+T: 393 >   R2(0) changed from RETURNING to WAITING
+T: 394 >   R2(1) changed from WAITING to DELIVERING
+T: 394 >   R2(1)-> [Mail Item:: ID:     22 | Arrival:   19 | Destination:  3 | Weight: 1129]
+T: 395 >   R0(0) changed from RETURNING to WAITING
+T: 396 >   R0(1) changed from WAITING to DELIVERING
+T: 396 >   R0(1)-> [Mail Item:: ID:     14 | Arrival:   32 | Destination:  3 | Weight: 1598]
+T: 396 > Delivered( 127) [Mail Item:: ID:    108 | Arrival:    5 | Destination:  3 | Weight:  478]
+T: 396 >   R1(0)-> [Mail Item:: ID:     36 | Arrival:   12 | Destination:  3 | Weight:  710]
+T: 397 > Delivered( 128) [Mail Item:: ID:     36 | Arrival:   12 | Destination:  3 | Weight:  710]
+T: 397 >   R1(0) changed from DELIVERING to RETURNING
+T: 397 > Delivered( 129) [Mail Item:: ID:     22 | Arrival:   19 | Destination:  3 | Weight: 1129]
+T: 397 >   R2(0)-> [Mail Item:: ID:     62 | Arrival:   24 | Destination:  3 | Weight:  401]
+T: 398 > Delivered( 130) [Mail Item:: ID:     62 | Arrival:   24 | Destination:  3 | Weight:  401]
+T: 398 >   R2(0) changed from DELIVERING to RETURNING
+T: 399 > Delivered( 131) [Mail Item:: ID:     14 | Arrival:   32 | Destination:  3 | Weight: 1598]
+T: 399 >   R0(0)-> [Mail Item:: ID:     74 | Arrival:   39 | Destination:  3 | Weight:  787]
+T: 400 > Delivered( 132) [Mail Item:: ID:     74 | Arrival:   39 | Destination:  3 | Weight:  787]
+T: 400 >   R0(0) changed from DELIVERING to RETURNING
+T: 400 >   R1(0) changed from RETURNING to WAITING
+T: 401 >   R1(1) changed from WAITING to DELIVERING
+T: 401 >   R1(1)-> [Mail Item:: ID:     99 | Arrival:   49 | Destination:  3 | Weight: 1921]
+T: 401 >   R2(0) changed from RETURNING to WAITING
+T: 402 >   R2(1) changed from WAITING to DELIVERING
+T: 402 >   R2(1)-> [Mail Item:: ID:    157 | Arrival:   64 | Destination:  3 | Weight:  551]
+T: 403 >   R0(0) changed from RETURNING to WAITING
+T: 404 >   R0(1) changed from WAITING to DELIVERING
+T: 404 >   R0(1)-> [Mail Item:: ID:     30 | Arrival:   81 | Destination:  3 | Weight:  590]
+T: 404 > Delivered( 133) [Mail Item:: ID:     99 | Arrival:   49 | Destination:  3 | Weight: 1921]
+T: 404 >   R1(0)-> [Mail Item:: ID:      3 | Arrival:   62 | Destination:  3 | Weight:  678]
+T: 405 > Delivered( 134) [Mail Item:: ID:      3 | Arrival:   62 | Destination:  3 | Weight:  678]
+T: 405 >   R1(0) changed from DELIVERING to RETURNING
+T: 405 > Delivered( 135) [Mail Item:: ID:    157 | Arrival:   64 | Destination:  3 | Weight:  551]
+T: 405 >   R2(0)-> [Mail Item:: ID:    111 | Arrival:   66 | Destination:  3 | Weight: 1479]
+T: 406 > Delivered( 136) [Mail Item:: ID:    111 | Arrival:   66 | Destination:  3 | Weight: 1479]
+T: 406 >   R2(0) changed from DELIVERING to RETURNING
+T: 407 > Delivered( 137) [Mail Item:: ID:     30 | Arrival:   81 | Destination:  3 | Weight:  590]
+T: 407 >   R0(0)-> [Mail Item:: ID:    133 | Arrival:   86 | Destination:  3 | Weight:  743]
+T: 408 > Delivered( 138) [Mail Item:: ID:    133 | Arrival:   86 | Destination:  3 | Weight:  743]
+T: 408 >   R0(0) changed from DELIVERING to RETURNING
+T: 408 >   R1(0) changed from RETURNING to WAITING
+T: 409 >   R1(1) changed from WAITING to DELIVERING
+T: 409 >   R1(1)-> [Mail Item:: ID:    138 | Arrival:  101 | Destination:  3 | Weight:  834]
+T: 409 >   R2(0) changed from RETURNING to WAITING
+T: 410 >   R2(1) changed from WAITING to DELIVERING
+T: 410 >   R2(1)-> [Mail Item:: ID:     52 | Arrival:  109 | Destination:  3 | Weight:  308]
+T: 411 >   R0(0) changed from RETURNING to WAITING
+T: 412 >   R0(1) changed from WAITING to DELIVERING
+T: 412 >   R0(1)-> [Mail Item:: ID:    131 | Arrival:   18 | Destination:  2 | Weight: 1514]
+T: 412 > Delivered( 139) [Mail Item:: ID:    138 | Arrival:  101 | Destination:  3 | Weight:  834]
+T: 412 >   R1(0)-> [Mail Item:: ID:     32 | Arrival:  106 | Destination:  3 | Weight:  702]
+T: 413 > Delivered( 140) [Mail Item:: ID:     32 | Arrival:  106 | Destination:  3 | Weight:  702]
+T: 413 >   R1(0) changed from DELIVERING to RETURNING
+T: 413 > Delivered( 141) [Mail Item:: ID:     52 | Arrival:  109 | Destination:  3 | Weight:  308]
+T: 413 >   R2(0)-> [Mail Item:: ID:    135 | Arrival:  118 | Destination:  3 | Weight:  373]
+T: 414 > Delivered( 142) [Mail Item:: ID:    131 | Arrival:   18 | Destination:  2 | Weight: 1514]
+T: 414 >   R0(0)-> [Mail Item:: ID:    139 | Arrival:   28 | Destination:  2 | Weight:  603]
+T: 414 > Delivered( 143) [Mail Item:: ID:    135 | Arrival:  118 | Destination:  3 | Weight:  373]
+T: 414 >   R2(0) changed from DELIVERING to RETURNING
+T: 415 > Delivered( 144) [Mail Item:: ID:    139 | Arrival:   28 | Destination:  2 | Weight:  603]
+T: 415 >   R0(0) changed from DELIVERING to RETURNING
+T: 416 >   R1(0) changed from RETURNING to WAITING
+T: 417 >   R0(0) changed from RETURNING to WAITING
+T: 417 >   R1(1) changed from WAITING to DELIVERING
+T: 417 >   R1(1)-> [Mail Item:: ID:     54 | Arrival:   29 | Destination:  2 | Weight:  575]
+T: 417 >   R2(0) changed from RETURNING to WAITING
+T: 418 >   R0(1) changed from WAITING to DELIVERING
+T: 418 >   R0(1)-> [Mail Item:: ID:    142 | Arrival:   50 | Destination:  2 | Weight:  322]
+T: 418 >   R2(1) changed from WAITING to DELIVERING
+T: 418 >   R2(1)-> [Mail Item:: ID:    118 | Arrival:   89 | Destination:  2 | Weight: 1204]
+T: 419 > Delivered( 145) [Mail Item:: ID:     54 | Arrival:   29 | Destination:  2 | Weight:  575]
+T: 419 >   R1(0)-> [Mail Item:: ID:     81 | Arrival:   29 | Destination:  2 | Weight: 1748]
+T: 420 > Delivered( 146) [Mail Item:: ID:    142 | Arrival:   50 | Destination:  2 | Weight:  322]
+T: 420 >   R0(0)-> [Mail Item:: ID:     80 | Arrival:   51 | Destination:  2 | Weight:  535]
+T: 420 > Delivered( 147) [Mail Item:: ID:     81 | Arrival:   29 | Destination:  2 | Weight: 1748]
+T: 420 >   R1(0) changed from DELIVERING to RETURNING
+T: 420 > Delivered( 148) [Mail Item:: ID:    118 | Arrival:   89 | Destination:  2 | Weight: 1204]
+T: 420 >   R2(0)-> [Mail Item:: ID:    104 | Arrival:   97 | Destination:  2 | Weight:  778]
+T: 421 > Delivered( 149) [Mail Item:: ID:     80 | Arrival:   51 | Destination:  2 | Weight:  535]
+T: 421 >   R0(0) changed from DELIVERING to RETURNING
+T: 421 > Delivered( 150) [Mail Item:: ID:    104 | Arrival:   97 | Destination:  2 | Weight:  778]
+T: 421 >   R2(0) changed from DELIVERING to RETURNING
+T: 422 >   R1(0) changed from RETURNING to WAITING
+T: 423 >   R0(0) changed from RETURNING to WAITING
+T: 423 >   R1(1) changed from WAITING to DELIVERING
+T: 423 >   R1(1)-> [Mail Item:: ID:     61 | Arrival:  119 | Destination:  2 | Weight:  747]
+T: 423 >   R2(0) changed from RETURNING to WAITING
+T: 424 >   R0(1) changed from WAITING to DELIVERING
+T: 424 >   R0(1)-> [Mail Item:: ID:    102 | Arrival:   10 | Destination:  1 | Weight:  676]
+T: 424 >   R2(1) changed from WAITING to DELIVERING
+T: 424 >   R2(1)-> [Mail Item:: ID:    119 | Arrival:   45 | Destination:  1 | Weight:  302]
+T: 425 > Delivered( 151) [Mail Item:: ID:    102 | Arrival:   10 | Destination:  1 | Weight:  676]
+T: 425 >   R0(0)-> [Mail Item:: ID:    152 | Arrival:   28 | Destination:  1 | Weight:  220]
+T: 425 > Delivered( 152) [Mail Item:: ID:     61 | Arrival:  119 | Destination:  2 | Weight:  747]
+T: 425 >   R1(0)-> [Mail Item:: ID:     92 | Arrival:  120 | Destination:  2 | Weight: 1185]
+T: 425 > Delivered( 153) [Mail Item:: ID:    119 | Arrival:   45 | Destination:  1 | Weight:  302]
+T: 425 >   R2(0)-> [Mail Item:: ID:     72 | Arrival:   46 | Destination:  1 | Weight: 1996]
+T: 426 > Delivered( 154) [Mail Item:: ID:    152 | Arrival:   28 | Destination:  1 | Weight:  220]
+T: 426 >   R0(0) changed from DELIVERING to RETURNING
+T: 426 > Delivered( 155) [Mail Item:: ID:     92 | Arrival:  120 | Destination:  2 | Weight: 1185]
+T: 426 >   R1(0) changed from DELIVERING to RETURNING
+T: 426 > Delivered( 156) [Mail Item:: ID:     72 | Arrival:   46 | Destination:  1 | Weight: 1996]
+T: 426 >   R2(0) changed from DELIVERING to RETURNING
+T: 427 >   R0(0) changed from RETURNING to WAITING
+T: 427 >   R2(0) changed from RETURNING to WAITING
+T: 428 >   R0(1) changed from WAITING to DELIVERING
+T: 428 >   R0(1)-> [Mail Item:: ID:      7 | Arrival:   57 | Destination:  1 | Weight:  777]
+T: 428 >   R1(0) changed from RETURNING to WAITING
+T: 428 >   R2(1) changed from WAITING to DELIVERING
+T: 428 >   R2(1)-> [Mail Item:: ID:     75 | Arrival:   97 | Destination:  1 | Weight: 2000]
+T: 429 > Delivered( 157) [Mail Item:: ID:      7 | Arrival:   57 | Destination:  1 | Weight:  777]
+T: 429 >   R0(0)-> [Mail Item:: ID:      8 | Arrival:   71 | Destination:  1 | Weight: 1615]
+T: 429 >   R1(0) changed from WAITING to DELIVERING
+T: 429 >   R1(0)-> [Mail Item:: ID:    144 | Arrival:  115 | Destination:  1 | Weight:  405]
+T: 429 > Delivered( 158) [Mail Item:: ID:     75 | Arrival:   97 | Destination:  1 | Weight: 2000]
+T: 429 >   R2(0)-> [Mail Item:: ID:     57 | Arrival:  111 | Destination:  1 | Weight: 1270]
+T: 430 > Delivered( 159) [Mail Item:: ID:      8 | Arrival:   71 | Destination:  1 | Weight: 1615]
+T: 430 >   R0(0) changed from DELIVERING to RETURNING
+T: 430 > Delivered( 160) [Mail Item:: ID:    144 | Arrival:  115 | Destination:  1 | Weight:  405]
+T: 430 >   R1(0) changed from DELIVERING to RETURNING
+T: 430 > Delivered( 161) [Mail Item:: ID:     57 | Arrival:  111 | Destination:  1 | Weight: 1270]
+T: 430 >   R2(0) changed from DELIVERING to RETURNING
+T: 431 | Simulation complete!
+Final Delivery time: 431
+Delay: 103191.73
\ No newline at end of file
diff --git a/Automail/src/automail/Automail.java b/Automail/src/automail/Automail.java
new file mode 100644
index 0000000..2eb9e1b
--- /dev/null
+++ b/Automail/src/automail/Automail.java
@@ -0,0 +1,20 @@
+package automail;
+
+import simulation.IMailDelivery;
+
+public class Automail {
+	      
+    public Robot[] robots;
+    public MailPool mailPool;
+    
+    public Automail(MailPool mailPool, IMailDelivery delivery, int numRobots) {  	
+    	/** Initialize the MailPool */
+    	
+    	this.mailPool = mailPool;
+    	
+    	/** Initialize robots */
+    	robots = new Robot[numRobots];
+    	for (int i = 0; i < numRobots; i++) robots[i] = new Robot(delivery, mailPool, i);
+    }
+    
+}
diff --git a/Automail/src/automail/MailItem.java b/Automail/src/automail/MailItem.java
new file mode 100644
index 0000000..785dcfe
--- /dev/null
+++ b/Automail/src/automail/MailItem.java
@@ -0,0 +1,82 @@
+package automail;
+
+import java.util.Map;
+import java.util.TreeMap;
+
+// import java.util.UUID;
+
+/**
+ * Represents a mail item
+ */
+public class MailItem {
+	
+    /** Represents the destination floor to which the mail is intended to go */
+    protected final int destination_floor;
+    /** The mail identifier */
+    protected final String id;
+    /** The time the mail item arrived */
+    protected final int arrival_time;
+    /** The weight in grams of the mail item */
+    protected final int weight;
+
+    /**
+     * Constructor for a MailItem
+     * @param dest_floor the destination floor intended for this mail item
+     * @param arrival_time the time that the mail arrived
+     * @param weight the weight of this mail item
+     */
+    public MailItem(int dest_floor, int arrival_time, int weight){
+        this.destination_floor = dest_floor;
+        this.id = String.valueOf(hashCode());
+        this.arrival_time = arrival_time;
+        this.weight = weight;
+    }
+
+    @Override
+    public String toString(){
+        return String.format("Mail Item:: ID: %6s | Arrival: %4d | Destination: %2d | Weight: %4d", id, arrival_time, destination_floor, weight);
+    }
+
+    /**
+     *
+     * @return the destination floor of the mail item
+     */
+    public int getDestFloor() {
+        return destination_floor;
+    }
+    
+    /**
+     *
+     * @return the ID of the mail item
+     */
+    public String getId() {
+        return id;
+    }
+
+    /**
+     *
+     * @return the arrival time of the mail item
+     */
+    public int getArrivalTime(){
+        return arrival_time;
+    }
+
+    /**
+    *
+    * @return the weight of the mail item
+    */
+   public int getWeight(){
+       return weight;
+   }
+   
+	static private int count = 0;
+	static private Map<Integer, Integer> hashMap = new TreeMap<Integer, Integer>();
+
+	@Override
+	public int hashCode() {
+		Integer hash0 = super.hashCode();
+		Integer hash = hashMap.get(hash0);
+		if (hash == null) { hash = count++; hashMap.put(hash0, hash); }
+		return hash;
+	}
+}
diff --git a/Automail/src/automail/MailPool.java b/Automail/src/automail/MailPool.java
new file mode 100644
index 0000000..b4ed25b
--- /dev/null
+++ b/Automail/src/automail/MailPool.java
@@ -0,0 +1,100 @@
+package automail;
+
+import java.util.LinkedList;
+import java.util.Comparator;
+import java.util.ListIterator;
+
+import exceptions.ItemTooHeavyException;
+
+/**
+ * addToPool is called when there are mail items newly arrived at the building to add to the MailPool or
+ * if a robot returns with some undelivered items - these are added back to the MailPool.
+ * The data structure and algorithms used in the MailPool is your choice.
+ * 
+ */
+public class MailPool {
+
+	private class Item {
+		int destination;
+		MailItem mailItem;
+		// Use stable sort to keep arrival time relative positions
+		
+		public Item(MailItem mailItem) {
+			destination = mailItem.getDestFloor();
+			this.mailItem = mailItem;
+		}
+	}
+	
+	public class ItemComparator implements Comparator<Item> {
+		@Override
+		public int compare(Item i1, Item i2) {
+			int order = 0;
+			if (i1.destination < i2.destination) {
+				order = 1;
+			} else if (i1.destination > i2.destination) {
+				order = -1;
+			}
+			return order;
+		}
+	}
+	
+	private LinkedList<Item> pool;
+	private LinkedList<Robot> robots;
+
+	public MailPool(int nrobots){
+		// Start empty
+		pool = new LinkedList<Item>();
+		robots = new LinkedList<Robot>();
+	}
+
+	/**
+     * Adds an item to the mail pool
+     * @param mailItem the mail item being added.
+     */
+	public void addToPool(MailItem mailItem) {
+		Item item = new Item(mailItem);
+		pool.add(item);
+		pool.sort(new ItemComparator());
+	}
+	
+	
+	
+	/**
+     * load up any waiting robots with mailItems, if any.
+     */
+	public void loadItemsToRobot() throws ItemTooHeavyException {
+		//List available robots
+		ListIterator<Robot> i = robots.listIterator();
+		while (i.hasNext()) loadItem(i);
+	}
+	
+	//load items to the robot
+	private void loadItem(ListIterator<Robot> i) throws ItemTooHeavyException {
+		Robot robot = i.next();
+		assert(robot.isEmpty());
+		// System.out.printf("P: %3d%n", pool.size());
+		ListIterator<Item> j = pool.listIterator();
+		if (pool.size() > 0) {
+			try {
+			robot.addToHand(j.next().mailItem); // hand first as we want higher priority delivered first
+			j.remove();
+			if (pool.size() > 0) {
+				robot.addToTube(j.next().mailItem);
+				j.remove();
+			}
+			robot.dispatch(); // send the robot off if it has any items to deliver
+			i.remove();       // remove from mailPool queue
+			} catch (Exception e) { 
+	            throw e; 
+	        } 
+		}
+	}
+
+	/**
+     * @param robot refers to a robot which has arrived back ready for more mailItems to deliver
+     */	
+	public void registerWaiting(Robot robot) { // assumes won't be there already
+		robots.add(robot);
+	}
+
+}
diff --git a/Automail/src/automail/Robot.java b/Automail/src/automail/Robot.java
new file mode 100644
index 0000000..4867889
--- /dev/null
+++ b/Automail/src/automail/Robot.java
@@ -0,0 +1,176 @@
+package automail;
+
+import exceptions.ExcessiveDeliveryException;
+import exceptions.ItemTooHeavyException;
+import simulation.Building;
+import simulation.Clock;
+import simulation.IMailDelivery;
+
+/**
+ * The robot delivers mail!
+ */
+public class Robot {
+	
+    static public final int INDIVIDUAL_MAX_WEIGHT = 2000;
+
+    IMailDelivery delivery;
+    protected final String id;
+    /** Possible states the robot can be in */
+    public enum RobotState { DELIVERING, WAITING, RETURNING }
+    public RobotState current_state;
+    private int current_floor;
+    private int destination_floor;
+    private MailPool mailPool;
+    private boolean receivedDispatch;
+    
+    private MailItem deliveryItem = null;
+    private MailItem tube = null;
+    
+    private int deliveryCounter;
+    
+
+    /**
+     * Initiates the robot's location at the start to be at the mailroom
+     * also set it to be waiting for mail.
+     * @param behaviour governs selection of mail items for delivery and behaviour on priority arrivals
+     * @param delivery governs the final delivery
+     * @param mailPool is the source of mail items
+     */
+    public Robot(IMailDelivery delivery, MailPool mailPool, int number){
+    	this.id = "R" + number;
+        // current_state = RobotState.WAITING;
+    	current_state = RobotState.RETURNING;
+        current_floor = Building.MAILROOM_LOCATION;
+        this.delivery = delivery;
+        this.mailPool = mailPool;
+        this.receivedDispatch = false;
+        this.deliveryCounter = 0;
+    }
+    
+    /**
+     * This is called when a robot is assigned the mail items and ready to dispatch for the delivery 
+     */
+    public void dispatch() {
+    	receivedDispatch = true;
+    }
+
+    /**
+     * This is called on every time step
+     * @throws ExcessiveDeliveryException if robot delivers more than the capacity of the tube without refilling
+     */
+    public void operate() throws ExcessiveDeliveryException {   
+    	switch(current_state) {
+    		/** This state is triggered when the robot is returning to the mailroom after a delivery */
+    		case RETURNING:
+    			/** If its current position is at the mailroom, then the robot should change state */
+                if(current_floor == Building.MAILROOM_LOCATION){
+                	if (tube != null) {
+                		mailPool.addToPool(tube);
+                        System.out.printf("T: %3d > old addToPool [%s]%n", Clock.Time(), tube.toString());
+                        tube = null;
+                	}
+        			/** Tell the sorter the robot is ready */
+        			mailPool.registerWaiting(this);
+                	changeState(RobotState.WAITING);
+                } else {
+                	/** If the robot is not at the mailroom floor yet, then move towards it! */
+                    moveTowards(Building.MAILROOM_LOCATION);
+                	break;
+                }
+    		case WAITING:
+                /** If the StorageTube is ready and the Robot is waiting in the mailroom then start the delivery */
+                if(!isEmpty() && receivedDispatch){
+                	receivedDispatch = false;
+                	deliveryCounter = 0; // reset delivery counter
+                	setDestination();
+                	changeState(RobotState.DELIVERING);
+                }
+                break;
+    		case DELIVERING:
+    			if(current_floor == destination_floor){ // If already here drop off either way
+                    /** Delivery complete, report this to the simulator! */
+                    delivery.deliver(deliveryItem);
+                    deliveryItem = null;
+                    deliveryCounter++;
+                    if(deliveryCounter > 2){  // Implies a simulation bug
+                    	throw new ExcessiveDeliveryException();
+                    }
+                    /** Check if want to return, i.e. if there is no item in the tube*/
+                    if(tube == null){
+                    	changeState(RobotState.RETURNING);
+                    }
+                    else{
+                        /** If there is another item, set the robot's route to the location to deliver the item */
+                        deliveryItem = tube;
+                        tube = null;
+                        setDestination();
+                        changeState(RobotState.DELIVERING);
+                    }
+    			} else {
+	        		/** The robot is not at the destination yet, move towards it! */
+	                moveTowards(destination_floor);
+    			}
+                break;
+    	}
+    }
+
+    /**
+     * Sets the route for the robot
+     */
+    private void setDestination() {
+        /** Set the destination floor */
+        destination_floor = deliveryItem.getDestFloor();
+    }
+
+    /**
+     * Generic function that moves the robot towards the destination
+     * @param destination the floor towards which the robot is moving
+     */
+    private void moveTowards(int destination) {
+        if(current_floor < destination){
+            current_floor++;
+        } else {
+            current_floor--;
+        }
+    }
+    
+    private String getIdTube() {
+    	return String.format("%s(%1d)", this.id, (tube == null ? 0 : 1));
+    }
+    
+    /**
+     * Prints out the change in state
+     * @param nextState the state to which the robot is transitioning
+     */
+    private void changeState(RobotState nextState){
+    	assert(!(deliveryItem == null && tube != null));
+    	if (current_state != nextState) {
+            System.out.printf("T: %3d > %7s changed from %s to %s%n", Clock.Time(), getIdTube(), current_state, nextState);
+    	}
+    	current_state = nextState;
+    	if(nextState == RobotState.DELIVERING){
+            System.out.printf("T: %3d > %7s-> [%s]%n", Clock.Time(), getIdTube(), deliveryItem.toString());
+    	}
+    }
+
+	public MailItem getTube() {
+		return tube;
+	}
+
+	public boolean isEmpty() {
+		return (deliveryItem == null && tube == null);
+	}
+
+	public void addToHand(MailItem mailItem) throws ItemTooHeavyException {
+		assert(deliveryItem == null);
+		deliveryItem = mailItem;
+		if (deliveryItem.weight > INDIVIDUAL_MAX_WEIGHT) throw new ItemTooHeavyException();
+	}
+
+	public void addToTube(MailItem mailItem) throws ItemTooHeavyException {
+		assert(tube == null);
+		tube = mailItem;
+		if (tube.weight > INDIVIDUAL_MAX_WEIGHT) throw new ItemTooHeavyException();
+	}
+
+}
diff --git a/Automail/src/exceptions/ExcessiveDeliveryException.java b/Automail/src/exceptions/ExcessiveDeliveryException.java
new file mode 100644
index 0000000..a316df4
--- /dev/null
+++ b/Automail/src/exceptions/ExcessiveDeliveryException.java
@@ -0,0 +1,10 @@
+package exceptions;
+
+/**
+ * An exception thrown when the robot tries to deliver more items than its tube capacity without refilling.
+ */
+public class ExcessiveDeliveryException extends Throwable {
+	public ExcessiveDeliveryException(){
+		super("Attempting to deliver more than 4 items in a single trip!!");
+	}
+}
diff --git a/Automail/src/exceptions/ItemTooHeavyException.java b/Automail/src/exceptions/ItemTooHeavyException.java
new file mode 100644
index 0000000..0e8c183
--- /dev/null
+++ b/Automail/src/exceptions/ItemTooHeavyException.java
@@ -0,0 +1,10 @@
+package exceptions;
+
+/**
+ * This exception is thrown when a robot takes a MailItem from its StorageTube which is too heavy for that robot
+ */
+public class ItemTooHeavyException extends Exception {
+    public ItemTooHeavyException(){
+        super("Item too heavy! Dropped by robot.");
+    }
+}
diff --git a/Automail/src/exceptions/MailAlreadyDeliveredException.java b/Automail/src/exceptions/MailAlreadyDeliveredException.java
new file mode 100644
index 0000000..cdb62b5
--- /dev/null
+++ b/Automail/src/exceptions/MailAlreadyDeliveredException.java
@@ -0,0 +1,10 @@
+package exceptions;
+
+/**
+ * An exception thrown when a mail that is already delivered attempts to be delivered again.
+ */
+public class MailAlreadyDeliveredException extends Throwable    {
+    public MailAlreadyDeliveredException(){
+        super("This mail has already been delivered!");
+    }
+}
diff --git a/Automail/src/simulation/Building.java b/Automail/src/simulation/Building.java
new file mode 100644
index 0000000..303fd79
--- /dev/null
+++ b/Automail/src/simulation/Building.java
@@ -0,0 +1,15 @@
+package simulation;
+
+public class Building {
+	
+	
+    /** The number of floors in the building **/
+    public static int FLOORS;
+    
+    /** Represents the ground floor location */
+    public static final int LOWEST_FLOOR = 1;
+    
+    /** Represents the mailroom location */
+    public static final int MAILROOM_LOCATION = 1;
+
+}
diff --git a/Automail/src/simulation/Clock.java b/Automail/src/simulation/Clock.java
new file mode 100644
index 0000000..55beebb
--- /dev/null
+++ b/Automail/src/simulation/Clock.java
@@ -0,0 +1,18 @@
+package simulation;
+
+public class Clock {
+	
+	/** Represents the current time **/
+    private static int Time = 0;
+    
+    /** The threshold for the latest time for mail to arrive **/
+    public static int MAIL_RECEVING_LENGTH;
+
+    public static int Time() {
+    	return Time;
+    }
+    
+    public static void Tick() {
+    	Time++;
+    }
+}
diff --git a/Automail/src/simulation/IMailDelivery.java b/Automail/src/simulation/IMailDelivery.java
new file mode 100644
index 0000000..5a1355d
--- /dev/null
+++ b/Automail/src/simulation/IMailDelivery.java
@@ -0,0 +1,16 @@
+package simulation;
+
+import automail.MailItem;
+
+/**
+ * a MailDelivery is used by the Robot to deliver mail once it has arrived at the correct location
+ */
+public interface IMailDelivery {
+
+	/**
+     * Delivers an item at its floor
+     * @param mailItem the mail item being delivered.
+     */
+	void deliver(MailItem mailItem);
+    
+}
\ No newline at end of file
diff --git a/Automail/src/simulation/MailGenerator.java b/Automail/src/simulation/MailGenerator.java
new file mode 100644
index 0000000..17a4a15
--- /dev/null
+++ b/Automail/src/simulation/MailGenerator.java
@@ -0,0 +1,135 @@
+package simulation;
+
+import java.util.*;
+
+import automail.MailItem;
+import automail.MailPool;
+
+/**
+ * This class generates the mail
+ */
+public class MailGenerator {
+
+    public final int MAIL_TO_CREATE;
+    public final int MAIL_MAX_WEIGHT;
+    
+    private int mailCreated;
+
+    private final Random random;
+    /** This seed is used to make the behaviour deterministic */
+    
+    private boolean complete;
+    private MailPool mailPool;
+
+    private Map<Integer,ArrayList<MailItem>> allMail;
+
+    /**
+     * Constructor for mail generation
+     * @param mailToCreate roughly how many mail items to create
+     * @param mailMaxWeight limits the maximum weight of the mail
+     * @param mailPool where mail items go on arrival
+     * @param seed random seed for generating mail
+     */
+    public MailGenerator(int mailToCreate, int mailMaxWeight, MailPool mailPool, HashMap<Boolean,Integer> seed){
+        if(seed.containsKey(true)){
+        	this.random = new Random((long) seed.get(true));
+        }
+        else{
+        	this.random = new Random();	
+        }
+        // Vary arriving mail by +/-20%
+        MAIL_TO_CREATE = mailToCreate*4/5 + random.nextInt(mailToCreate*2/5);
+        MAIL_MAX_WEIGHT = mailMaxWeight;
+        // System.out.println("Num Mail Items: "+MAIL_TO_CREATE);
+        mailCreated = 0;
+        complete = false;
+        allMail = new HashMap<Integer,ArrayList<MailItem>>();
+        this.mailPool = mailPool;
+    }
+
+    /**
+     * @return a new mail item that needs to be delivered
+     */
+    private MailItem generateMail(){
+    	MailItem newMailItem;
+        int destinationFloor = generateDestinationFloor();
+        int arrivalTime = generateArrivalTime();
+        int weight = generateWeight();
+        
+        newMailItem = new MailItem(destinationFloor,arrivalTime,weight);
+        return newMailItem;
+    }
+
+    /**
+     * @return a destination floor between the ranges of GROUND_FLOOR to FLOOR
+     */
+    private int generateDestinationFloor(){
+        return Building.LOWEST_FLOOR + random.nextInt(Building.FLOORS);
+    }
+
+    /**
+     * @return a random weight
+     */
+    private int generateWeight(){
+    	final double mean = 200.0; // grams for normal item
+    	final double stddev = 1000.0; // grams
+    	double base = random.nextGaussian();
+    	if (base < 0) base = -base;
+    	int weight = (int) (mean + base * stddev);
+        return weight > MAIL_MAX_WEIGHT ? MAIL_MAX_WEIGHT : weight;
+    }
+    
+    /**
+     * @return a random arrival time before the last delivery time
+     */
+    private int generateArrivalTime(){
+        return 1 + random.nextInt(Clock.MAIL_RECEVING_LENGTH);
+    }
+
+    /**
+     * This class initializes all mails and sets their corresponding values,
+     * All generated mails will be saved in allMail
+     */
+    public void generateAllMail(){
+        while(!complete){
+            MailItem newMail =  generateMail();
+            int timeToDeliver = newMail.getArrivalTime();
+            /** Check if key exists for this time **/
+            if(allMail.containsKey(timeToDeliver)){
+                /** Add to existing array */
+                allMail.get(timeToDeliver).add(newMail);
+            }
+            else{
+                /** If the key doesn't exist then set a new key along with the array of MailItems to add during
+                 * that time step.
+                 */
+                ArrayList<MailItem> newMailList = new ArrayList<MailItem>();
+                newMailList.add(newMail);
+                allMail.put(timeToDeliver,newMailList);
+            }
+            /** Mark the mail as created */
+            mailCreated++;
+
+            /** Once we have satisfied the amount of mail to create, we're done!*/
+            if(mailCreated == MAIL_TO_CREATE){
+                complete = true;
+            }
+        }
+
+    }
+    
+    /**
+     * Given the clock time, put the generated mails into the mailPool.
+     * So that the robot will can pick up the mails from the pool.
+     */
+    public void addToMailPool(){
+    	// Check if there are any mail to create
+        if(this.allMail.containsKey(Clock.Time())){
+            for(MailItem mailItem : allMail.get(Clock.Time())){
+                System.out.printf("T: %3d > new addToPool [%s]%n", Clock.Time(), mailItem.toString());
+                mailPool.addToPool(mailItem);
+            }
+        }
+    }
+    
+}
diff --git a/Automail/src/simulation/Simulation.java b/Automail/src/simulation/Simulation.java
new file mode 100644
index 0000000..39c65fb
--- /dev/null
+++ b/Automail/src/simulation/Simulation.java
@@ -0,0 +1,181 @@
+package simulation;
+
+import exceptions.ExcessiveDeliveryException;
+import exceptions.ItemTooHeavyException;
+import exceptions.MailAlreadyDeliveredException;
+
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Properties;
+
+import com.unimelb.swen30006.wifimodem.WifiModem;
+
+import automail.Automail;
+import automail.MailItem;
+import automail.MailPool;
+
+/**
+ * This class simulates the behaviour of AutoMail
+ */
+public class Simulation {
+	private static int NUM_ROBOTS;
+	private static double CHARGE_THRESHOLD;
+	private static boolean CHARGE_DISPLAY;
+	
+    /** Constant for the mail generator */
+    private static int MAIL_TO_CREATE;
+    private static int MAIL_MAX_WEIGHT;
+    
+    private static ArrayList<MailItem> MAIL_DELIVERED;
+    private static double total_delay = 0;
+    private static WifiModem wModem = null;
+
+    public static void main(String[] args) throws InstantiationException, IllegalAccessException, ClassNotFoundException, IOException {
+    	
+    	/** Load properties for simulation based on either default or a properties file.**/
+    	Properties automailProperties = setUpProperties();
+    	
+    	//An array list to record mails that have been delivered
+        MAIL_DELIVERED = new ArrayList<MailItem>();
+                
+        /** This code section below is to save a random seed for generating mails.
+         * If a program argument is entered, the first argument will be a random seed.
+         * If not a random seed will be from a properties file. 
+         * Otherwise, no a random seed. */
+        
+        /** Used to see whether a seed is initialized or not */
+        HashMap<Boolean, Integer> seedMap = new HashMap<>();
+        if (args.length == 0 ) { // No arg
+        	String seedProp = automailProperties.getProperty("Seed");
+        	if (seedProp == null) { // and no property
+        		seedMap.put(false, 0); // so randomise
+        	} else { // Use property seed
+        		seedMap.put(true, Integer.parseInt(seedProp));
+        	}
+        } else { // Use arg seed - overrides property
+        	seedMap.put(true, Integer.parseInt(args[0]));
+        }
+        Integer seed = seedMap.get(true);
+        System.out.println("#A Random Seed: " + (seed == null ? "null" : seed.toString()));
+        
+        // Install the modem & turn on the modem
+        try {
+        	System.out.println("Setting up Wifi Modem");
+        	wModem = WifiModem.getInstance(Building.MAILROOM_LOCATION);
+			System.out.println(wModem.Turnon());
+		} catch (Exception mException) {
+			mException.printStackTrace();
+		}
+        
+        /**
+         * This code section is for running a simulation
+         */
+        /* Instantiate MailPool and Automail */
+     	MailPool mailPool = new MailPool(NUM_ROBOTS);
+        Automail automail = new Automail(mailPool, new ReportDelivery(), NUM_ROBOTS);
+        MailGenerator mailGenerator = new MailGenerator(MAIL_TO_CREATE, MAIL_MAX_WEIGHT, mailPool, seedMap);
+        
+        /** Generate all the mails */
+        mailGenerator.generateAllMail();
+        while(MAIL_DELIVERED.size() != mailGenerator.MAIL_TO_CREATE) {
+        	// System.out.printf("Delivered: %4d; Created: %4d%n", MAIL_DELIVERED.size(), mailGenerator.MAIL_TO_CREATE);
+            mailGenerator.addToMailPool();
+            try {
+                automail.mailPool.loadItemsToRobot();
+				for (int i=0; i < NUM_ROBOTS; i++) {
+					automail.robots[i].operate();
+				}
+			} catch (ExcessiveDeliveryException|ItemTooHeavyException e) {
+				e.printStackTrace();
+				System.out.println("Simulation unable to complete.");
+				System.exit(0);
+			}
+            Clock.Tick();
+        }
+        printResults();
+        System.out.println(wModem.Turnoff());
+    }
+    
+    static private Properties setUpProperties() throws IOException {
+    	Properties automailProperties = new Properties();
+		// Default properties
+    	automailProperties.setProperty("Robots", "Standard");
+    	automailProperties.setProperty("Floors", "10");
+    	automailProperties.setProperty("Mail_to_Create", "80");
+    	automailProperties.setProperty("ChargeThreshold", "0");
+    	automailProperties.setProperty("ChargeDisplay", "false");
+    	
+    	// Read properties
+		FileReader inStream = null;
+		try {
+			inStream = new FileReader("automail.properties");
+			automailProperties.load(inStream);
+		} finally {
+			 if (inStream != null) {
+	                inStream.close();
+	            }
+		}
+		
+		// Floors
+		Building.FLOORS = Integer.parseInt(automailProperties.getProperty("Floors"));
+        System.out.println("#Floors: " + Building.FLOORS);
+		// Mail_to_Create
+		MAIL_TO_CREATE = Integer.parseInt(automailProperties.getProperty("Mail_to_Create"));
+        System.out.println("#Created mails: " + MAIL_TO_CREATE);
+        // Mail_to_Create
+     	MAIL_MAX_WEIGHT = Integer.parseInt(automailProperties.getProperty("Mail_Max_Weight"));
+        System.out.println("#Maximum weight: " + MAIL_MAX_WEIGHT);
+		// Last_Delivery_Time
+		Clock.MAIL_RECEVING_LENGTH = Integer.parseInt(automailProperties.getProperty("Mail_Receving_Length"));
+        System.out.println("#Mail receiving length: " + Clock.MAIL_RECEVING_LENGTH);
+		// Robots
+		NUM_ROBOTS = Integer.parseInt(automailProperties.getProperty("Robots"));
+		System.out.print("#Robots: "); System.out.println(NUM_ROBOTS);
+		assert(NUM_ROBOTS > 0);
+		// Charge Threshold 
+		CHARGE_THRESHOLD = Double.parseDouble(automailProperties.getProperty("ChargeThreshold"));
+		System.out.println("#Charge Threshold: " + CHARGE_THRESHOLD);
+		// Charge Display
+		CHARGE_DISPLAY = Boolean.parseBoolean(automailProperties.getProperty("ChargeDisplay"));
+		System.out.println("#Charge Display: " + CHARGE_DISPLAY);
+		
+		return automailProperties;
+    }
+    
+    static class ReportDelivery implements IMailDelivery {
+    	
+    	/** Confirm the delivery and calculate the total score */
+    	public void deliver(MailItem deliveryItem){
+    		if(!MAIL_DELIVERED.contains(deliveryItem)){
+    			MAIL_DELIVERED.add(deliveryItem);
+                System.out.printf("T: %3d > Delivered(%4d) [%s]%n", Clock.Time(), MAIL_DELIVERED.size(), deliveryItem.toString());
+    			// Calculate delivery score
+    			total_delay += calculateDeliveryDelay(deliveryItem);
+    		}
+    		else{
+    			try {
+    				throw new MailAlreadyDeliveredException();
+    			} catch (MailAlreadyDeliveredException e) {
+    				e.printStackTrace();
+    			}
+    		}
+    	}
+
+    }
+    
+    private static double calculateDeliveryDelay(MailItem deliveryItem) {
+    	// Penalty for longer delivery times
+    	final double penalty = 1.2;
+    	double priority_weight = 0;
+        // Take (delivery time - arrivalTime)**penalty * (1+sqrt(priority_weight))
+        return Math.pow(Clock.Time() - deliveryItem.getArrivalTime(),penalty)*(1+Math.sqrt(priority_weight));
+    }
+
+    public static void printResults(){
+        System.out.println("T: "+Clock.Time()+" | Simulation complete!");
+        System.out.println("Final Delivery time: "+Clock.Time());
+        System.out.printf("Delay: %.2f%n", total_delay);
+    }
+}
-- 
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