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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 spend so many time for resolve it, but test [TestCase(4503599627370497, ExpectedResult = -1)] not asserted. Then I thought that I didn't understand something and looked at the decisions of other participants. They were no different from mine and didn't pass this test either. C# lacks the precision to solve this test