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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.
This is the best, I was struggling with replacing the newly replaced letters, but this case trick does the job!
Actually nope, as here there's a remainder operator used, and not the division one.
So, if a number is even, its remainder divided by two is zero, thus it should go to the "else"(after : here) part.