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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.
a lot of fun!! thanks!
testing number 1 should be added .. it might failed with some solution based on log to find the number of digit (since log(1) = o)