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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.
Do you see how the closing
'is in the next line? The input value is not'123'it's'123\n'. The same for the other one.No, it can't.
You're new here, so I'll give you some advice, when asking for help, give detailed information, which tests? which language? Nobody can help you with only what you wrote, you could post your code and mark the post as having spoiler content too.