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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.
Description changed.
I think it's not described clearly or description is overcomplicated, especially with the negative parts, especially regarding that t's just in definition for odd number
Description should be updated to make it more clear, especially regarding decimal number cases