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8:24 AM
@famesyasd At the beginning the stones are red then green then blue (say in clockwise order).
At the end you want them in opposite order. For which n is that possible?
Sorry I see why my original statement was ambiguous. I was sleepy when posting it hahaha..
 
 
5 hours later…
1:10 PM
@user21820 mind too busy grinding on my set theory book now to do anything else. xD
 

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