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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.
If you want to see the input, you have to print the input, not the output...
A mi me sale el mismo error al final resolviste cual era el problema
Alguien sabe que validacion en el codigo hace el test4 porque es el unico que me falta para pasar este reto