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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.
you are asking for help. this is not a kata Issue (a bug within the kata). please do not open issues so lightly
you forgot to include
2 ** 0(aka1) in your array, because your while loop stops whenn === 0