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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.
The test is broken. It says it wants string reversal, with spaces if some included. Instead if changes the spaces of place in a random and unpredictibale way. For example your code rocks becomes skco redocr ouy which makes no fucking sense
look for recursive functions