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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 have the same problem.
Can you give me a hint please?
UPD.: Solved.
They are easier to read if you are new to python but I assure you that I would rather read this code than an equivalent 6 lines solution anytime.
Good solution but difficult to read. Standard for loops are more easy to read and understand.
Okay then, this means the issue is resolved, I suppose.