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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 a little squares? There are normal rows and collumns also sqrt of N is an integer, but it must be invalid... Why?
the bset way
is it trend to solve task in one line xd?