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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.
it also check if number is negative or not
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It isn't the best way haha, its terrible. I think maybe that is the point.
It adds nonsense on top of the starting code nonsense. It is not the best way of solving the problem.
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