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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.
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totally true, but the notes in the task are:
0 <= x <= 4
0 <= y <= 4
so in this case the solution is just fine
good solution, but if there will be two digits - string comparing will return wrong result:
fmt.Println(11 > 2) // will return true - that what we need
fmt.Println("11" > "2") // oops, this will returne false, thats why we need to convert to int
What about two digits numbers? (10, 11, 12 etc)