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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.
yup !! But nice kata althougth
this's very clean
so easy :)
it's so fast
that's good!
When calculating the length of a number, it would be a better idea to convert it to a string for manipulation