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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.
What is the bug? Your solution seems to be buggy, it does not handle leading spaces correctly.
It seems there's a bug in this, but its not reading the correct answer as passed in Java.