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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.
this program is very much talking to the computer, amazing: "please add 1 for every letter in the string if the letter appears in these vowels over here thank you"