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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.
Nice solution
Nice one
Awesome
Thats what she said
Filtering two times is not optimal. Just compare the difference in length and add extra zeros at end. Check out my solution.