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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.
OMG! Thank, so much for you advise! I spend whole day for understanding what is wrong with my code. But now, I resolve it within 5 minutes. You are my sensei. OZZZ))
stupid task, any outputs doesn't agree.