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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.
i thnk than the secondtest is wrong, in the set of minor words say "The In" should will be"the in"!?, whatever Anyway, with all the cases that I tried it works but when I want to send it I get an error but I don't know which is the test that makes my code fail
Your problem is the way you use the change, think about using the higher denomination first.