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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.
There is already a fixed test which includes all integers only -->
3 6 4 2 8 7 5 1 9across all languages, so closing this one.That's your luck :D; for me there seems to be tests with 9.
Complex part of the number.