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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.
?? People are in the input array, in the order of the input array. So they are as many as the array has elements. The first is the first element of the array, the second is the second, and so on... Is it really stupid?