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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.
That was my fault. One variable in the code was of type int
You should say your language and what was the input...
Anyway not a kata issue, there are no errors in the tests.
Did you try to pass this string to some number parsing function? I've had this error when I passed too big number or incorrect string.
Java. Failed: For input string: "9681665455-273-2-8528". Input string?