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AoGAAAfoJgkQIECAgAD7AQIECBAgEAgIcIBukgABAgQIHLFxAWmhEwHPAAAAAElFTkSuQmCC</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="204.24729416030777" y="113.63365409068821" heading="104.17000000000002" scale="0.5" volume="100" pan="0" rotation="0" draggable="true" hidden="true" costume="1" color="80,80,80,1" pen="tip" id="8"><costumes><list id="9"><item><costume name="well" center-x="12" center-y="26" image="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABkAAAAxCAYAAAAvFgI4AAAKIUlEQVRYR62Y249dVR3Hf2utvdfa13P2OdN2Oi1SKW2BUoRIS0QUqhGa4gO+dIyJITEmkJhA5C9wfDU8EEhI5MkHY2JJtFOExjKxGMQEBSlCCyLQ6ZlO73Nue699W5ef2TPcryNlJ/vt7PU5v+/3+/uttTeBVV6ISH75DLClAthEBngMwDy+DywQgp+3BPm8HwAguefX4GxYB6Hi0C4VhFhW2qeZ1DCRPX8c5DMzRH/WOp8NQSQzfwJ/BNAhBDblqdlmLFsDWlUc9TnG4BRp+W8VZ6H/2L1EfRroMyBIHtgPHnHgK5WBbUUJO6WE66sa1jlgSkbNGc+xb/gB/I165vjzc68vvfjYzk8EfSpk337kUx6sryTcJGu4SUrYKTO8UisSU4LKIWYohO61QzgSe84RK+Xrk+fbo5kZYj9a0adAkNz3W4jRh+sGKXw/y+EbUsK2qsCO1YQTQEOYrblj++0IX2jH9knfrZ+9IFq9x6dJvSrIzAzS89thXaXg2/0R7JM5fL0sYdJq5M3yQNAQAKQMiijUbySxearr2yc9CF578G7IAT6cuE+sZN9+ZF/hsOHiCG7vj2A6y+BrRkEHEajV4BIKTZqQEqs83863w+rw2sj+0XHVy4/8uJuuDoLIpp4oNy4tsT3DAZ2WOdmhNekgAEVLHIQVCCNWCa57ndj8OY6qA67qH33s3s3j1UH2I1tr+hvGWfy9wZhMZwVcr2vSRSAUgTLERi5sKqk8r3o7CepDnRBnebv76qPTIFcFaTwZbDu/Nq3jb/WH8MNxTm+sSrreWOYQpMyCsRTQUlbLgJevtv3yiU5MDym3fOs3P7miXJ3xiLT83aidA95wcQA/GGbk5jQnV9Q1C8Ggg8RaxrDmrupHoni+E6uDa9z6OaNOnHnk/r31Z1SCZGYG2Okbz3C3H/kBDhMNzpXjEm8ZZfbrg7G+Ki+wW5UlJ4jWD1zpeXi+E+p/dAN4NvThGKrWeUnDbKFaKg/1tyh4p2feSReSffvBmxTQAaU2lFJtVGU5aXQ9pStzRVmby7K83iBl1cml5I0pQRxK32P9VsDeFsKZd11xmnLvHGPOacHpKbdlzi+qJH18mjRxB2i6ex2DKavMdlngzrK028tSTanatIzFyCj0tVJ+VVW8LmtGEIEHnnI5q7hLM8dhklGau66zJDh72/fhJS7gKOTVW4+deThtQkJ+fgDaeQE7ysremkm8NS/s1Uphog041iJDJAQtEqN1czOC1FLXQYcRSxywhDRJI9ZhUHBOFiMPX/Bcc8Rl7Lmj5thp0jReh8E6W5qb0wz2jDO8pSrhMgTiWgBiDVBrKQGLxCIAGuMCUE0oQUoBqdN0vkVCAAmAZRTGvmuO+549HDj2EPDwv2QfIlt/CKbSPtyapebOLINvKIVrmocZo7aqCVcKXLRAmhssuABENZOjWZi5oIVnFXPAGAUMLSru6DdDDocD3x4UdvQa2X0Ene0jmCpyuC0d2ztlBjcZYxJPYMlcRxcVCWUOgdXgNPsgIHEBUDU7YqO1EFiFsc0cF1VVU6ErJA7V84Gwc6GAWeOlx9+DVBJ2p9LulRnsQmviIMCxy6kaF6ydpdDSNYgPQxp5EH0P805i+o6AqihJUBaWM4K9wLVzgacPGq94H9JUkqV2by7NTYg2jEMycLlTjyRMpClJ1McgpPHBBp6R3a5Z8jxSpDlERYGCWrvgCTvnB3DQ16MPQDJzWybJ3jy3u8CaMA5h4HJWDyWbSFPofBgCalk4Cjb0rOx2dF9wUsoSwrwgnFi94Ll2zhdw0CfBp0CMCeOI9F1O1DBjE2lGPgdilhpvZEHCPEdB0S4Ix875sTsL/f4HjP9gJcsQ6C9XktE1nwfpdPSyXDKHKM/RW4ZwmBOePRhOBcc+ki5zZ5HbXYgmbIVNJaxqIFlGOrUCAeaddJEVuShB6wvTyLXk+Q2EREXBBFiz6LswF7bILF/jrkC2pbChTuG2TNq9hTS7iLVB9K4nGZvIJHSUArHcJ6aJMCigTZeD9bmW3cQs8ZAWMmdRmYNHwS56jvlL5OEB7fuvfizCeW53gjVBGEDfFStyZRl0tSYCEAhq4pLlPoHldDWQiQlzgXtY5AWNihx8au2i7+Jcy4dZ0si1b/9+thZ2r63K1q6ysN/Nc31j82wUkCF1BV0aO5dnOV1bK/CtAaJrS1gzUpoJRtEGHo4mkvpU4JulotCiLFAA2kXXgb9yp55buPCfE82hg/xsP4SuHmzOc3W9qtXVjFhfCKEKiCYvZt4N4wwu1zUJtWqGJAKlAIxRZARN4OuLa5L6eDesXwddFkWlCVp93gXzSkXUK3LtsQvLo373DDpXT77V9ZjdQKxdz1zrUy8JLtat684Nvd0yJ1tURSJVW2qacUwAHMrAYaADT5+ZaJX/nGxVf/dJuqjLutbEjhxrT6N/+uyDd+/J3zsSNdP42sGLQkRcMDcWfZpMnR5F37k4ZnfJHK9RhW1VdUVQ5c2hBRweEsdhOvDtwkRY/nUyKp/qdqtXuFlK6cDW5Zm0mvnF7mplxn3sQnLfw29yZ/OWjefO2z3DIdknc7y2zqt2KQdgyr5G4jARracu93QYQC+J66cnhJp1/AtHj534/eiZmRnTHJneXfoTD3dNrK8+C5eNK7hjNIRpKc2OMpNJMTqNOjtTAvNd0d7kcq+twpD2kqg+3PHqA1GZHX3oga+OVnUkavaYdX+AywYj2DMa4nRW2B1FmibVcN6obLEAGgqRbOHcb6sodk92GkhQHwjlqZcfeuCGLw7J03FSjU5qnfZKZDEX7S2C+4mKYz6/ApGzoTx7aRDZVDLqaZPOl5ZFXLS3chEkOo7c+U6kDne4nA2rS4Rky3L1jM1OFoaGXCRbuRe0dRzx+SRSh7tfCmScJtW4p+24V2kWOF57q/DC9yEtLmfbl1zJeNxAlB33lGYh+yike6mepIXdIZchJ2s7XtDvQDwvTNSyJ7E63PEv0fgVSJrU43llxgvKsMAR7av4ilxfEqTpk2ycJmrUMzo9WRnaNOM21wsT3US4Mf7L8STNknpwEk3Wyw31+JcGGY7hjuEQprPcXCcz2a4G88RkvdRQTzTGi6Cj4ljMt6Pq6Ykv0vFTT8DGwRBuHwxwWua4I0/TpBiesiY9kaHjcS/eGoiwq6MGEqunJ2J1AKv+y//XO+OkgMkig1v7I7hL5vbaQqatenCqLse9lLmBJ5IrI+G1bRC5vcTTR6KwOpQgHv/VT9dkqxqQzevEPXPQclPYPhzAN6sKNlVSBsVoMS9GCymloe93N7W43yJewM7GgX7JE+Zf80sXFg/dv7Va1Tvj8m55BJ3rz8BERmBDpaFtU+kU43NlceFExbyW63c3+0HsEe7yDEJzjkN64dHjj+YwM7Pazx4r/2X3bnTiHwFvheBAvw+L7N+2ekaYeFNILYucazZuxmECpnwb1OMzoD4q07sV/Q9fGAqIFMCf6QAAAABJRU5ErkJggg==" id="10"/></item><item><costume name="sick" center-x="12" center-y="26" image="data:image/png;base64,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" id="11"/></item></list></costumes><sounds><list struct="atomic" id="12"></list></sounds><blocks></blocks><variables><variable name="infected?"><bool>false</bool></variable></variables><scripts><script x="19.999999999999996" y="6.756756756756757"><custom-block s="simulate disease, population: %n percent infected: %n speed: %n"><l>50</l><l>5</l><l>2</l></custom-block></script><script x="22.000000000000004" y="41.423423423423486"><block s="receiveOnClone"></block><custom-block s="initialize clone"></custom-block><block s="doWaitUntil"><block var="running"/></block><block s="doUntil"><block s="reportEquals"><block var="number infected"/><block var="population"/></block><script><block s="forward"><block var="speed"/></block><block s="bounceOffEdge"></block><block s="doWarp"><script><block s="doIf"><custom-block s="touching infected person?"></custom-block><script><block s="doIf"><block s="reportNot"><block var="infected?"/></block><script><block s="doChangeVar"><l>number infected</l><l>1</l></block></script></block><block s="doSetVar"><l>infected?</l><block s="reportBoolean"><l><bool>true</bool></l></block></block><block s="doSwitchToCostume"><l>sick</l></block></script></block></script></block></script></block></script><script x="22.999999999999996" y="359.7567567567567"><block s="receiveMessage"><l>vanish</l></block><block s="removeClone"></block></script><script x="26.33333333333335" y="427.75675675675666"><block s="receiveGo"></block><block s="bubble"><l></l></block><block s="bubble"><custom-block s="simulate disease, population: %n percent infected: %n speed: %n"><l>50</l><l>5</l><l>2</l></custom-block></block><block s="show"></block></script><script x="28.01158301158301" y="570.1787093215665"><custom-block s="average time for disease spread with population size: %n"><l>200</l><comment w="90" collapsed="false">size: time&#xD;50: 11.18925&#xD;100: 17.4665&#xD;150: 16.696&#xD;200: 15.274</comment></custom-block></script></scripts></sprite><watcher scope="Sprite" var="infected?" style="normal" x="9.999999999999545" y="10.000000000000007" color="243,118,29" hidden="true"/><watcher var="running" style="normal" x="9.999999999999545" y="160.00000999999995" color="243,118,29" hidden="true"/><watcher var="start time" style="normal" x="9.999999999999545" y="190.00001199999994" color="243,118,29" hidden="true"/><watcher var="elapsed time" style="normal" x="9.999999999999545" y="220.00001399999996" color="243,118,29" hidden="true"/><watcher var="number infected" style="normal" x="8.999999999999545" y="11.000001999999995" color="243,118,29" hidden="true"/></sprites></stage><hidden></hidden><headers></headers><code></code><blocks><block-definition s="simulate disease, population: %&apos;population&apos; percent infected: %&apos;percent initially infected&apos; speed: %&apos;speed&apos;" type="reporter" category="other"><header></header><code></code><translations></translations><inputs><input type="%n"></input><input type="%n"></input><input type="%n"></input></inputs><script><custom-block s="initialize simulation %n %n %n"><block var="population"/><block var="percent initially infected"/><block var="speed"/></custom-block><block s="show"></block><block s="doRepeat"><block var="population"/><script><block s="createClone"><l><option>myself</option></l></block></script></block><block s="hide"></block><block s="doSetVar"><l>start time</l><block s="reportDate"><l><option>time in milliseconds</option></l></block></block><block s="doSetVar"><l>running</l><block s="reportBoolean"><l><bool>true</bool></l></block></block><block s="doWaitUntil"><block s="reportEquals"><block var="number infected"/><block var="population"/></block></block><block s="doSetVar"><l>elapsed time</l><block s="reportQuotient"><block s="reportDifference"><block s="reportDate"><l><option>time in milliseconds</option></l></block><block var="start time"/></block><l>1000</l></block></block><block s="doBroadcast"><l>vanish</l></block><block s="doReport"><block var="elapsed time"/></block></script></block-definition><block-definition s="average time for disease spread with population size: %&apos;size&apos;" type="reporter" category="operators"><header></header><code></code><translations></translations><inputs><input type="%n"></input></inputs><script><block s="doReport"><block s="reportQuotient"><block s="reportCombine"><block s="reportMap"><block s="reifyReporter"><autolambda><custom-block s="simulate disease, population: %n percent infected: %n speed: %n"><block var="size"/><l>10</l><l>2</l></custom-block></autolambda><list></list></block><block s="reportNumbers"><l>1</l><l>4</l></block></block><block s="reifyReporter"><autolambda><block s="reportSum"><l></l><l></l></block></autolambda><list></list></block></block><l>4</l></block></block></script><scripts><script x="243.91891891891893" y="243.84234234234245"><block s="bubble"><l></l></block></script></scripts></block-definition><block-definition s="initialize clone" type="command" category="other"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doIf"><block s="reportLessThan"><block var="number infected"/><block s="reportProduct"><block var="population"/><block s="reportQuotient"><block var="percent initially infected"/><l>100</l></block></block></block><script><block s="doChangeVar"><l>number infected</l><l>1</l></block><block s="doSetVar"><l>infected?</l><block s="reportBoolean"><l><bool>true</bool></l></block></block><block s="doSwitchToCostume"><l>sick</l></block></script></block><block s="doGotoObject"><l><option>random position</option></l></block><block s="doFaceTowards"><l><option>random position</option></l></block></script></block-definition><block-definition s="touching infected person?" type="predicate" category="other"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doForEach"><l>item</l><block s="reportGet"><l><option>neighbors</option></l></block><script><block s="doIf"><block s="reportAnd"><block s="reportNot"><block var="infected?"/></block><block s="reportAnd"><block s="reportTouchingObject"><block var="item"/></block><block s="reportAskFor"><block var="item"/><block s="reifyReporter"><autolambda><block var="infected?"/></autolambda><list></list></block><list></list></block></block></block><script><block s="doReport"><block s="reportBoolean"><l><bool>true</bool></l></block></block></script></block></script></block><block s="doReport"><block s="reportBoolean"><l><bool>false</bool></l></block></block></script></block-definition><block-definition s="initialize simulation %&apos;pop&apos; %&apos;inf&apos; %&apos;sp&apos;" type="command" category="other"><header></header><code></code><translations></translations><inputs><input type="%n"></input><input type="%n"></input><input type="%n"></input></inputs><script><block s="doSetVar"><l>population</l><block var="pop"/><comment w="216.66666666666666" collapsed="true">Make global so &quot;when I start&quot; can use it.</comment></block><block s="doSetVar"><l>percent initially infected</l><block var="inf"/></block><block s="doSetVar"><l>speed</l><block var="sp"/></block><block s="doSetVar"><l>infected?</l><block s="reportBoolean"><l><bool>false</bool></l></block></block><block s="doSetVar"><l>running</l><block s="reportBoolean"><l><bool>false</bool></l></block></block><block s="doSetVar"><l>number infected</l><l>0</l></block><block s="doSwitchToCostume"><l>well</l></block><block s="setScale"><l>50</l></block></script></block-definition></blocks><variables><variable name="number infected"><l>200</l></variable><variable name="running"><bool>true</bool></variable><variable name="start time"><l>1616507592670</l></variable><variable name="elapsed time"><l>15.189</l></variable><variable name="population"><l>200</l></variable><variable name="percent initially infected"><l>10</l></variable><variable name="speed"><l>2</l></variable></variables></project><media name="U5L2S2-Simulation Student" app="Snap! 6, https://snap.berkeley.edu" version="1"></media></snapdata>