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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.
This one is more about math than knowing the programming langage.
I was very frustrated because I spend a long time on it but I learned verry interresting things about Python while doing this one. Worth it!
Yes, great lesson!!