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.
You have to create the algorithm to swap it. You sort it so that it has the proper order for you to be able to swap correctly. Re-read the scenario and take a look at the step-by-step examples underneath.
Probably you're printing the input of more than one test and confusing that with a single test input.