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import Data.List
takeValids :: Int -> [Int] -> [[Int]]
takeValids n = filter (all (<= n) . take n) . permutations
takeValids 3 [1..5]
[[1,2,3,4,5],[2,1,3,4,5],[3,2,1,4,5],[2,3,1,4,5],[3,1,2,4,5],[1,3,2,4,5],[1,2,3,5,4],[2,1,3,5,4],[2,3,1,5,4],[1,3,2,5,4],[3,1,2,5,4],[3,2,1,5,4]]
5!
?AH
5!
?IC
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