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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.
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well thats not right.
How on Earth it was accepted? In case of ('U', 'False') the solution is wrong...
I am surprised that this was accepted as the comparison should have been lexicographic.
That's the Record of Guinness! ))))