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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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The description specifies that numbers up to
10^12are tested. I added two examples with large numbers to Sample Tests.This comment is hidden because it contains spoiler information about the solution