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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.
Something tells me he did it because zeroes look cool like that!
sometimes when i'm looking through solutions it makes me literally sad
OMG..
There are faster ways than typing out all the zeroes. Imagine, say, that you had to write a similar program for 10 times as many solutions: you would start to regret this method...