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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.
Why? this is an comment to a solution, not sure why i need a spoiler.
This comment is hidden because it contains spoiler information about the solution
last $ take (n + 1) $ iterate unjumble stris the same as
iterate unjumble str !! nor (map divisibleBy [3,5])could be refactored like this:any divisibleBy [3,5]