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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.
Oh! You are right, my bad.
srry I don't understand why, in the first iteration will find ')' and return False, solved.
Good solution for this specific test cases, although if test case was= ')(' your solution will fail.