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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.
Why is it not 1kyu?
Oh, i used replace with loop....
i too
i use upper :)
my advice: you can write score += 4, i think its will be faster
this is very similar to my solution, but my loop for looks like for i in range(len(arr1)):