<snapdata remixID="13029039"><project name="4.2 lab" app="Snap! 9.0, https://snap.berkeley.edu" version="2"><notes></notes><thumbnail>data:image/png;base64,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</thumbnail><scenes select="1"><scene name="4.2 lab"><notes></notes><hidden></hidden><headers></headers><code></code><blocks><block-definition s="start with letter c" type="command" category="variables"><header></header><code></code><translations></translations><inputs></inputs></block-definition></blocks><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="6"><pentrails>data:image/png;base64,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</pentrails><costumes><list struct="atomic" id="7"></list></costumes><sounds><list struct="atomic" id="8"></list></sounds><variables></variables><blocks></blocks><scripts></scripts><sprites select="1"><sprite name="Sprite" idx="1" x="0" y="0" heading="90" scale="1" volume="100" pan="0" rotation="1" draggable="true" costume="0" color="80,80,80,1" pen="tip" id="13"><costumes><list struct="atomic" id="14"></list></costumes><sounds><list struct="atomic" id="15"></list></sounds><blocks></blocks><variables></variables><scripts><script x="26.99999999999997" y="16.833333333333258"><block s="doSetVar"><l>names</l><block s="reportNewList"><list><l>michelle</l><l>sally</l><l>eric</l><l>john</l><l>sam</l><l>caleb</l></list></block></block></script><script x="21.99999999999997" y="91.83333333333303"><block s="doSetVar"><l>item number</l><l>1</l></block><block s="doSetVar"><l>all names</l><l></l></block><block s="doRepeat"><block s="reportListAttribute"><l><option>length</option></l><block var="names"/></block><script><block s="doSetVar"><l>all names</l><block s="reportJoinWords"><list><block var="all names"/><block s="reportJoinWords"><list><block s="reportListItem"><block var="item number"/><block var="names"/></block><l>, </l></list></block></list></block></block><block s="doChangeVar"><l>item number</l><l>1</l></block><block s="doIf"><block s="reportVariadicEquals"><list><block var="item number"/><block s="reportListAttribute"><l><option>length</option></l><block var="names"/></block></list></block><script><block s="doSetVar"><l>all names</l><block s="reportJoinWords"><list><block var="all names"/><l>and </l></list></block></block></script><list></list></block></script></block><block s="doSayFor"><block s="reportJoinWords"><list><l>Welcome </l><block var="all names"/></list></block><l>5</l></block></script><script x="10" y="370.8333333333329"><block s="receiveKey"><l><option>1</option></l><list></list></block><block s="doSetVar"><l>more than 4 letters</l><l></l></block><block s="doSetVar"><l>item number</l><l>1</l></block><block s="doRepeat"><block s="reportListAttribute"><l><option>length</option></l><block var="names"/></block><script><block s="doIf"><block s="reportVariadicGreaterThan"><list><block s="reportTextAttribute"><l><option>length</option></l><block s="reportListItem"><block var="item number"/><block var="names"/></block></block><l>4</l></list></block><script><block s="doSetVar"><l>more than 4 letters</l><block s="reportJoinWords"><list><block var="more than 4 letters"/><block s="reportJoinWords"><list><block s="reportListItem"><block var="item number"/><block var="names"/></block><l>, </l></list></block></list></block></block></script><list></list></block><block s="doChangeVar"><l>item number</l><l>1</l></block></script></block><block s="doSayFor"><block var="more than 4 letters"/><l>5</l></block></script><script x="14.999999999999972" y="628.8333333333343"><block s="receiveKey"><l><option>2</option></l><list></list></block><block s="doSetVar"><l>start with letter C</l><l></l></block><block s="doSetVar"><l>item number</l><l>1</l></block><block s="doRepeat"><block s="reportListAttribute"><l><option>length</option></l><block var="names"/></block><script><block s="doIf"><block s="reportVariadicEquals"><list><block s="reportLetter"><l>1</l><block s="reportListItem"><block var="item number"/><block var="names"/></block></block><l>c</l></list></block><script><block s="doSetVar"><l>start with letter C</l><block s="reportJoinWords"><list><block var="start with letter C"/><block s="reportJoinWords"><list><block s="reportListItem"><block var="item number"/><block var="names"/></block><l>, </l></list></block></list></block></block></script><list></list></block><block s="doChangeVar"><l>item number</l><l>1</l></block></script></block><block s="doSayFor"><block var="start with letter C"/><l>5</l></block></script><script x="20.99999999999997" y="900.8333333333343"><block s="receiveKey"><l><option>3</option></l><list></list></block><block s="doSetVar"><l>end with the letter Y</l><l></l></block><block s="doSetVar"><l>item number</l><l>1</l></block><block s="doRepeat"><block s="reportListAttribute"><l><option>length</option></l><block var="names"/></block><script><block s="doIf"><block s="reportVariadicEquals"><list><block s="reportLetter"><block s="reportTextAttribute"><l><option>length</option></l><l>world</l></block><block s="reportListItem"><block var="item number"/><block var="names"/></block></block><l>y</l></list></block><script><block s="doSetVar"><l>end with the letter Y</l><block s="reportJoinWords"><list><block var="end with the letter Y"/><block s="reportJoinWords"><list><block s="reportListItem"><block var="item number"/><block var="names"/></block><l>, </l></list></block></list></block></block></script><list></list></block><block s="doChangeVar"><l>item number</l><l>1</l></block></script></block><block s="doSayFor"><block var="end with the letter Y"/><l>5</l></block></script><script x="41.99999999999997" y="1179.8333333333312"><block s="receiveKey"><l><option>4</option></l><list></list></block><block s="doSetVar"><l>not first or last two</l><l></l></block><block s="doSetVar"><l>item number</l><l>1</l></block><block s="doRepeat"><block s="reportListAttribute"><l><option>length</option></l><block var="names"/></block><script><block s="doIf"><block s="reportVariadicEquals"><list><block s="reportVariadicOr"><list><block s="reportVariadicOr"><list><block s="reportVariadicEquals"><list><block var="item number"/><block s="reportListAttribute"><l><option>length</option></l><block var="names"/></block></list></block><block s="reportVariadicEquals"><list><block var="item number"/><block s="reportDifference"><block s="reportListAttribute"><l><option>length</option></l><block var="names"/></block><l>1</l></block></list></block></list></block><block s="reportVariadicOr"><list><block s="reportVariadicEquals"><list><block var="item number"/><l>2</l></list></block><block s="reportVariadicEquals"><list><block var="item number"/><l>1</l></list></block></list></block></list></block><block s="reportBoolean"><l><bool>false</bool></l></block></list></block><script><block s="doSetVar"><l>not first or last two</l><block s="reportJoinWords"><list><block var="not first or last two"/><block s="reportJoinWords"><list><block s="reportListItem"><block var="item number"/><block var="names"/></block><l>, </l></list></block></list></block></block></script><list></list></block><block s="doChangeVar"><l>item number</l><l>1</l></block></script></block><block s="doSayFor"><block var="not first or last two"/><l>5</l></block></script><script x="347.0000000000002" y="10"><block s="receiveGo"></block><block s="doSetVar"><l>item number</l><l>1</l></block><block s="doRepeat"><block s="reportListAttribute"><l><option>length</option></l><block var="names"/></block><script><block s="doSayFor"><block s="reportJoinWords"><list><l>Welcome, </l><block s="reportListItem"><block var="item number"/><block var="names"/></block></list></block><l>2</l></block><block s="doChangeVar"><l>item number</l><l>1</l></block></script></block></script></scripts></sprite><watcher var="names" style="normal" x="10" y="10" color="243,118,29" extX="80" extY="70"/><watcher var="item number" style="normal" x="297" y="50.000001999999995" color="243,118,29"/><watcher var="all names" style="normal" x="130" y="16.00000399999999" color="243,118,29"/><watcher var="start with letter C" style="normal" x="10" y="124.00000399999999" color="243,118,29"/><watcher var="more than 4 letters" style="normal" x="30" y="319.000002" color="243,118,29"/><watcher var="not first or last two" style="normal" x="21" y="264.000008" color="243,118,29"/><watcher var="end with the letter Y" style="normal" x="-15" y="168.00000599999998" color="243,118,29" hidden="true"/></sprites></stage><variables><variable name="names"><list struct="atomic" id="393">michelle,sally,eric,john,sam,caleb</list></variable><variable name="item number"><l>7</l></variable><variable name="all names"><l>michelle, sally, eric, john, sam, and caleb, </l></variable><variable name="more than 4 letters"><l>michelle, sally, caleb, </l></variable><variable name="start with letter C"><l>caleb, </l></variable><variable name="end with the letter Y"><l>sally, </l></variable><variable name="not first or last two"><l>eric, john, </l></variable></variables></scene></scenes></project><media name="4.2 lab" app="Snap! 9.0, https://snap.berkeley.edu" version="2"></media></snapdata>