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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.
No, parentheses are very important in this situation and in our case we start from the bottom to the top not from the top to the bottom.
It's just like looping into strings but in reversed way