<snapdata remixID="13962218"><project name="Concentration squares" app="Snap! 10.1-dev, https://snap.berkeley.edu" version="2"><notes></notes><thumbnail>data:image/png;base64,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</thumbnail><scenes select="1"><scene name="Concentration squares"><notes></notes><hidden></hidden><headers></headers><code></code><blocks><block-definition s="numSQ %&apos;number of squares&apos;" type="command" category="motion"><header></header><code></code><translations></translations><inputs><input type="%s" initial="1"></input></inputs><script><block s="doRepeat"><block var="number of squares"/><script><block s="forward"><l>50</l></block><block s="turn"><l>90</l></block></script></block><block s="changeSize"><l>.5</l></block></script></block-definition></blocks><primitives></primitives><stage name="Stage" width="480" height="360" costume="0" color="255,255,255,1" tempo="60" threadsafe="false" penlog="false" volume="100" pan="0" lines="round" ternary="false" hyperops="true" codify="false" inheritance="true" sublistIDs="false" id="18"><pentrails>data:image/png;base64,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</pentrails><costumes><list 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