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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.
Method names should start from a capital letter in C#.
but
So this case is invalid.
This comment is hidden because it contains spoiler information about the solution
Random tests appear to be broken.
inputs: "62694/-18591" "1089/52122"
expected: "1027230628/20245599"
The expected is not even the correct sign. Are the random tests doing something like overflowing the int datatype?