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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.
Changed the comment to
200 * 200It's not clear what exactly are you doing in the first case and in the second.
My suggestion is to print input and output of your function.