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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.
This comment is hidden because it contains spoiler information about the solution
What is the problem?
Calc the average by yourself (in your head) and you will see, that 94 is the correct answer.
Exactly as the tests expects the value.
Where is 78?
Maybe you should paste your code here (mark as spoiler!).