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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.
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Very funny and easy challenge, it's more about being precice than else, congratulations.
use some kind of tolerance for checking if a number is an integer
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