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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></variables><scripts><script x="28" y="289"><block s="receiveGo"></block><block s="doUntil"><block s="reportEquals"><block var="Infected"/><block var="total"/></block><script><block s="doWait"><l>1</l></block><block s="doChangeVar"><l>time</l><l>1</l></block></script></block><block s="bubble"><l>Hello!</l></block><block s="doPauseAll"></block></script><script x="156" y="189.00000000000003"><block s="receiveGo"></block><block s="doSetVar"><l>total</l><l>0</l></block><block s="doSetVar"><l>time</l><l>0</l></block><block s="doSetVar"><l>Infected</l><l>1</l></block><block s="doSwitchToCostume"><l>red circle</l></block><custom-block s="start #"></custom-block><custom-block s="population# of people %s"><l>20</l></custom-block><custom-block s="PEOPLE infected: %s"><l>10</l></custom-block><block s="doRepeat"><block s="reportDifference"><block var="total"/><l>1</l></block><script><block s="createClone"><l><option>myself</option></l></block></script></block><custom-block s="move, speed: %s"><l>2</l></custom-block></script><script x="25" y="58.8333333333334"><block s="receiveOnClone"></block><custom-block s="start #"></custom-block><block s="doSwitchToCostume"><l>blue circle</l></block><block s="doIf"><block s="reportLessThan"><block var="Infected"/><block s="reportProduct"><block var="total"/><block s="reportQuotient"><block var="perc inf"/><l>100</l></block></block></block><script><block s="doSwitchToCostume"><l>red circle</l></block><block s="doChangeVar"><l>Infected</l><l>1</l></block></script></block><custom-block s="move, speed: %s"><l>3</l></custom-block></script><script x="487" y="68.00000000000003"><block s="receiveGo"></block></script></scripts></sprite><watcher var="perc inf" style="normal" x="10.000000000000227" y="31.000001999999995" color="243,118,29" hidden="true"/><watcher var="total" style="normal" x="10" y="10" color="243,118,29"/><watcher scope="Stage" s="getTimer" style="normal" x="10" y="73.00000599999998" color="4,148,220" hidden="true"/><watcher var="Infected" style="normal" x="190" y="5.000001999999995" color="243,118,29"/><watcher var="TIMER" style="normal" x="364" y="6.00000399999999" color="243,118,29"/></sprites></stage><hidden></hidden><headers></headers><code></code><blocks><block-definition s="start #" type="command" category="motion"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doGotoObject"><l><option>random position</option></l></block><block s="setHeading"><block s="reportRandom"><l>1</l><l>360</l></block></block></script></block-definition><block-definition s="move, speed: %&apos;speed&apos;" type="command" category="motion"><header></header><code></code><translations></translations><inputs><input type="%s"></input></inputs><script><block s="doForever"><script><block s="forward"><block var="speed"/></block><block s="bounceOffEdge"></block><block s="doIf"><block s="reportColorIsTouchingColor"><color>33,0,198,1</color><color>249,0,66,1</color></block><script><block s="doChangeVar"><l>Infected</l><l>1</l></block><block s="doSwitchToCostume"><l>red circle</l></block></script></block></script></block></script></block-definition><block-definition s="population# of people %&apos;size&apos;" type="command" category="looks"><header></header><code></code><translations></translations><inputs><input type="%s"></input></inputs><script><block s="doSetVar"><l>total</l><block var="size"/></block></script></block-definition><block-definition s="PEOPLE infected: %&apos;perc&apos;" type="command" category="looks"><header></header><code></code><translations></translations><inputs><input type="%s"></input></inputs><script><block s="doSetVar"><l>perc inf</l><block var="perc"/></block></script></block-definition><block-definition s="clone appearance" type="command" category="looks"><header></header><code></code><translations></translations><inputs></inputs></block-definition></blocks><variables><variable name="perc inf"><l>10</l></variable><variable name="total"><l>20</l></variable><variable name="Infected"><l>19</l></variable><variable name="TIMER"><l>0</l></variable></variables></project><media name="Disease Spread" app="Snap! 6, https://snap.berkeley.edu" version="1"></media></snapdata>