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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.
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Ohhhhh ok thanks, ...that makes things more interesting! :D
the example in the instructions says
2017 ==> 2071but it shouldn't be 7210 the biggest integer we can build using 2017's digits??Thank you for your advice I totally misunderstand the kata requirements :/
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