<snapdata remixID="8686222"><project name="U2L2P2:Abstract Data Types" app="Snap! 5.1, http://snap.berkeley.edu" version="1"><notes></notes><thumbnail>data:image/png;base64,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</thumbnail><stage name="Stage" width="480" height="360" costume="0" color="255,255,255,1" tempo="60" threadsafe="false" volume="100" pan="0" lines="round" ternary="true" codify="false" inheritance="false" sublistIDs="false" scheduled="false" id="1"><pentrails>data:image/png;base64,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</pentrails><costumes><list struct="atomic" id="2"></list></costumes><sounds><list struct="atomic" id="3"></list></sounds><variables></variables><blocks></blocks><scripts></scripts><sprites><sprite name="Sprite" idx="1" x="100" y="120" heading="90" scale="1" volume="100" pan="0" rotation="1" draggable="true" costume="0" color="2,0,40,1" pen="tip" id="8"><costumes><list struct="atomic" id="9"></list></costumes><sounds><list struct="atomic" id="10"></list></sounds><blocks></blocks><variables></variables><scripts><script x="719.806641625" y="291.000001"><block var="A"/></script><script x="522" y="521"><block s="gotoXY"><l>100</l><l>120</l></block></script><script x="466" y="73"><block s="receiveKey"><l><option>c</option></l></block><block s="clear"></block></script><script x="11" y="204"><block s="doSetVar"><l>H</l><block s="reportNewList"><list><custom-block s="point %n %n"><l>20</l><l>120</l></custom-block><custom-block s="point %n %n"><l>40</l><l>120</l></custom-block><custom-block s="point %n %n"><l>40</l><l>80</l></custom-block><custom-block s="point %n %n"><l>60</l><l>80</l></custom-block><custom-block s="point %n %n"><l>60</l><l>120</l></custom-block><custom-block s="point %n %n"><l>80</l><l>120</l></custom-block><custom-block s="point %n %n"><l>80</l><l>20</l></custom-block><custom-block s="point %n %n"><l>60</l><l>20</l></custom-block><custom-block s="point %n %n"><l>60</l><l>60</l></custom-block><custom-block s="point %n %n"><l>40</l><l>60</l></custom-block><custom-block s="point %n %n"><l>40</l><l>20</l></custom-block><custom-block s="point %n %n"><l>20</l><l>20</l></custom-block><custom-block s="point %n %n"><l>20</l><l>120</l></custom-block></list></block></block></script><script x="492" y="148"><block s="receiveGo"></block><block s="up"></block><block s="gotoXY"><l>20</l><l>120</l></block><block s="down"></block><custom-block s="draw shape %l"><block var="H"/></custom-block><block s="up"></block><block s="gotoXY"><l>100</l><l>120</l></block><block s="down"></block><custom-block s="draw shape %l"><block var="I"/></custom-block></script><script x="11" y="358"><block s="doSetVar"><l>I</l><block s="reportNewList"><list><custom-block s="point %n %n"><l>100</l><l>120</l></custom-block><custom-block s="point %n %n"><l>160</l><l>120</l></custom-block><custom-block s="point %n %n"><l>160</l><l>100</l></custom-block><custom-block s="point %n %n"><l>140</l><l>100</l></custom-block><custom-block s="point %n %n"><l>140</l><l>40</l></custom-block><custom-block s="point %n %n"><l>160</l><l>40</l></custom-block><custom-block s="point %n %n"><l>160</l><l>20</l></custom-block><custom-block s="point %n %n"><l>100</l><l>20</l></custom-block><custom-block s="point %n %n"><l>100</l><l>40</l></custom-block><custom-block s="point %n %n"><l>120</l><l>40</l></custom-block><custom-block s="point %n %n"><l>120</l><l>100</l></custom-block><custom-block s="point %n %n"><l>100</l><l>100</l></custom-block><custom-block s="point %n %n"><l>100</l><l>120</l></custom-block></list></block></block></script></scripts></sprite><watcher var="A" style="normal" x="6.270833333333371" y="92.49479292083329" color="243,118,29" hidden="true"/><watcher var="I" style="normal" x="10" y="10" color="243,118,29" hidden="true"/><watcher var="H" style="normal" x="10" y="31.000001999999995" color="243,118,29" hidden="true"/></sprites></stage><hidden></hidden><headers></headers><code></code><blocks><block-definition s="empty? %&apos;data&apos;" type="predicate" category="lists"><header></header><code></code><translations></translations><inputs><input type="%l"></input></inputs><script><block s="doReport"><block s="reportEquals"><block var="data"/><block s="reportNewList"><list></list></block></block></block></script></block-definition><block-definition s="for %&apos;i&apos; = %&apos;start&apos; to %&apos;end&apos; %&apos;action&apos;" type="command" category="control"><header></header><code></code><translations></translations><inputs><input type="%upvar"></input><input type="%n">1</input><input type="%n">10</input><input type="%cs"></input></inputs><script><block s="doDeclareVariables"><list><l>step</l><l>tester</l></list></block><block s="doIfElse"><block s="reportGreaterThan"><block var="start"/><block var="end"/></block><script><block s="doSetVar"><l>step</l><l>-1</l></block><block s="doSetVar"><l>tester</l><block s="reifyReporter"><autolambda><block s="reportLessThan"><block var="i"/><block var="end"/></block></autolambda><list></list></block></block></script><script><block s="doSetVar"><l>step</l><l>1</l></block><block s="doSetVar"><l>tester</l><block s="reifyReporter"><autolambda><block s="reportGreaterThan"><block var="i"/><block var="end"/></block></autolambda><list></list></block></block></script></block><block s="doSetVar"><l>i</l><block var="start"/></block><block s="doUntil"><block s="evaluate"><block var="tester"/><list></list></block><script><block s="doRun"><block var="action"/><list></list></block><block s="doChangeVar"><l>i</l><block var="step"/></block></script></block></script></block-definition><block-definition s="for each %&apos;item&apos; of %&apos;data&apos; %&apos;action&apos;" type="command" category="lists"><header></header><code></code><translations></translations><inputs><input type="%upvar"></input><input type="%l"></input><input type="%cs"></input></inputs><script><block s="doUntil"><custom-block s="empty? %l"><block var="data"/></custom-block><script><block s="doSetVar"><l>item</l><block s="reportListItem"><l>1</l><block var="data"/></block></block><block s="doRun"><block var="action"/><list><block s="reportListItem"><l>1</l><block var="data"/></block></list></block><block s="doSetVar"><l>data</l><block s="reportCDR"><block var="data"/></block></block></script></block></script></block-definition><block-definition s="go to point %&apos;point&apos;" type="command" category="motion"><header></header><code></code><translations></translations><inputs><input type="%l"></input></inputs><script><block s="gotoXY"><custom-block s="x coordinate of %l"><block var="point"/></custom-block><custom-block s="y coordinate of %l"><block var="point"/></custom-block></block></script></block-definition><block-definition s="draw shape %&apos;shape&apos;" type="command" category="motion"><header></header><code></code><translations></translations><inputs><input type="%l"></input></inputs><script><block s="doForEach"><l>item</l><block var="shape"/><script><custom-block s="go to point %l"><block var="item"/></custom-block></script></block></script><scripts><script x="273.9296885" y="198.000003"><block var="A"/></script></scripts></block-definition><block-definition s="point %&apos;x&apos; %&apos;y&apos;" type="command" category="operators"><header></header><code></code><translations></translations><inputs><input type="%s"></input><input type="%s"></input></inputs></block-definition><block-definition s="point" type="reporter" category="operators"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doReport"><l></l></block></script></block-definition><block-definition s="x coordinate of %&apos;point&apos;" type="reporter" category="operators"><header></header><code></code><translations></translations><inputs><input type="%l"></input></inputs><script><block s="doReport"><block s="reportListItem"><l>1</l><block var="point"/></block></block></script></block-definition><block-definition s="y coordinate of %&apos;point&apos;" type="reporter" category="operators"><header></header><code></code><translations></translations><inputs><input type="%l"></input></inputs><script><block s="doReport"><block s="reportListItem"><l>2</l><block var="point"/></block></block></script></block-definition><block-definition s="point %&apos;X&apos; %&apos;Y&apos;" type="reporter" category="operators"><header></header><code></code><translations></translations><inputs><input type="%n"></input><input type="%n"></input></inputs><script><block s="doReport"><block s="reportNewList"><list><block var="X"/><block var="Y"/></list></block></block></script><scripts><script x="248.482424875" y="93.00000399999999"><block var="y#"/></script><script x="131.3193379375" y="107.00000299999999"><block var="x#"/></script><script x="183.3193379375" y="92.00000299999999"><block var="y#"/></script></scripts></block-definition><block-definition s="draw inside of A" type="command" category="motion"><header></header><code></code><translations></translations><inputs></inputs><script><block s="up"></block><block s="gotoXY"><l>-20</l><l>60</l></block><block s="down"></block><block s="gotoXY"><l>20</l><l>60</l></block><block s="gotoXY"><l>0</l><l>110</l></block><block s="gotoXY"><l>-20</l><l>60</l></block></script></block-definition></blocks><variables><variable name="A"><list id="317"><item><list struct="atomic" id="318">-50,20</list></item><item><list struct="atomic" id="319">-10,120</list></item><item><list struct="atomic" id="320">10,120</list></item><item><list struct="atomic" id="321">50,20</list></item><item><list struct="atomic" id="322">30,20</list></item><item><list struct="atomic" id="323">20,50</list></item><item><list struct="atomic" id="324">-20,50</list></item><item><list struct="atomic" id="325">-30,20</list></item></list></variable><variable name="I"><list id="326"><item><list struct="atomic" id="327">100,120</list></item><item><list struct="atomic" id="328">160,120</list></item><item><list struct="atomic" id="329">160,100</list></item><item><list struct="atomic" id="330">140,100</list></item><item><list struct="atomic" id="331">140,40</list></item><item><list struct="atomic" id="332">160,40</list></item><item><list struct="atomic" id="333">160,20</list></item><item><list struct="atomic" id="334">100,20</list></item><item><list struct="atomic" id="335">100,40</list></item><item><list struct="atomic" id="336">120,40</list></item><item><list struct="atomic" id="337">120,100</list></item><item><list struct="atomic" id="338">100,100</list></item><item><list struct="atomic" id="339">100,120</list></item></list></variable><variable name="H"><list id="340"><item><list struct="atomic" id="341">20,120</list></item><item><list struct="atomic" id="342">40,120</list></item><item><list struct="atomic" id="343">40,80</list></item><item><list struct="atomic" id="344">60,80</list></item><item><list struct="atomic" id="345">60,120</list></item><item><list struct="atomic" id="346">80,120</list></item><item><list struct="atomic" id="347">80,20</list></item><item><list struct="atomic" id="348">60,20</list></item><item><list struct="atomic" id="349">60,60</list></item><item><list struct="atomic" id="350">40,60</list></item><item><list struct="atomic" id="351">40,20</list></item><item><list struct="atomic" id="352">20,20</list></item><item><list struct="atomic" id="353">20,120</list></item></list></variable></variables></project><media name="U2L2P2:Abstract Data Types" app="Snap! 5.1, http://snap.berkeley.edu" version="1"></media></snapdata>