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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.
Normally i hide such comments because i don't want that too many others use this info to solve (cheat;-)) the kata...
I hate your hidden comment, because I can't see it. But I was curious, so I solved this kata ;-)
BTW: Very interesting Kata, but the lack of random testing ;-)
This comment is hidden because it contains spoiler information about the solution