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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 wonder how did it even pass the test-cases, because this fails in many scenarios. For example a string with 140 characters would pass which shouldn't , a string with multiple spaces at the beginning and end or in between the words whose length is <=139(after trimming the spaces) should pass but it fails..