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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.
in Python quite some solutions would have a problem with the test below cause they ignor the case hiting the "-" at negative numbers pls add or corect me if I misunderstood the kata
Test.assert_equals(find_digit(-5540, 5), 0)