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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.
I think many people didn't understand the kata and kata's description. I think in this kata id of lst must be the same at the end of function. So, most of all solution is wrong.
Oh stop please. It is incorrect. Function should get argument whith id and should return it with the same id. This solution changed the id. So bad