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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.
How does this handle "Pak should not be the first or last word. Strings of just spaces should return an empty string." ?
Wrong Information within the Description "given an array of minimum 4 positive integers.".
In Java tested arrays can be smaller than 4 and the integers can be negative.