4-rings or 4-squares puzzle: Difference between revisions

m
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</syntaxhighlight>
 
For interest, thisthe following solution uses CoreFoundation (CF) strings.
{{output}}
<syntaxhighlight lang="futurebasic">
<pre style="height:10ex;">
aaa
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fff
</pre>
</syntaxhighlight>
 
{{output}}
416

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