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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
What the... I neet to drown myself by stuffing my head into toilet..
Genius!
I feel so stupid now than I'm going to drown myself by stuffing my head into the toilet. See you on the other side...
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What if there are multiple first characters in string? Then this fails, for example to compare shiftedDiff("fofe","ofef")