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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.
Cool
Well... Easier way is writing out all numbers from zero to a million to string
Had issues with the spaces between the strings but it was an awesome kata