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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.
Scroll to the right. It's similar to most of the other solutions; the important code is just hidden off to the side.
Спасибо, уже увидел - не ожидал такого подвоха)
прокрути решение до упора вправо, на первой строке будет код ))
How it work???