Loading collection data...
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.
It would be nice to have some random tests (to prevent hardcoding), and maybe shifting with very large values, or negative ones.
Duplicate.
Include uppercase letters/strings as well as lowercase