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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.
Next time, leave out the input validation and put in random testing.
A more original idea would help as well. This is not really interesting, even if maybe not an outright duplicate.
Author solution thinks there are 25 alphabets. :thinking:
50
can't beA2
, it's less than26 * 2
.