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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.
'looks like u solved it'
Python by default has a recursion limit of 1,000, meaning a function can't call itself more than 1,000 times.
Check that the your solution is not falling foul of this.