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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.
So, that second congruence should actually not be one, it should be a translation into [0]₅
$ is the reverse list of test answers.
sumStrings pops the end element off it.
It doesn't address the problem in any way.
Any kata where an answer like this is possible is in dire need of randomised tests.
Are the breaks really needed?
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