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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.
use dictionary :D
Well, this is the whole challenge
https://docs.codewars.com/training/troubleshooting#print-input
i know but, can't understand what are the test numbers
It means you returned 0 but the correct answer is -1.
i am sorry, but how can i make the string variable without '' or ""
'0 should equal -1' 11th basic test
what is this?