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+import Control.Arrow
+removeAt :: Int -> [a] -> [a]
+removeAt n xs = (take (n-1) xs) ++ (drop n xs)
+
+removeAtT :: Int -> [a] -> (a,[a])
+removeAtT 1 (x:xs) = (x,xs)
+removeAtT n (x:xs) = (fst &&& ((x:).snd)) $ removeAtT (n-1) xs