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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.
Approved some time ago
The second test in Rust is
[NORTH, WEST, SOUTH, EAST], it's not the same as in the description ;-)I just tried a few different solutions without any problem. You could try again and if it doesn't work report it as a bug at CW: Forum -> Bugs.