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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.
you need to clarify the "returns n th " in " Your task is to write a function green that returns n th green number, starting with 1 - green (1) == 1"
what is the thing to return exactly?
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