>>> drop 6 "Hello World!" "World!"
>>> drop 3 [1,2,3,4,5] [4,5]
>>> drop 3 [1,2] []
>>> drop 3 [] []
>>> drop (-1) [1,2] [1,2]
>>> drop 0 [1,2] [1,2]
>>> dropWhile (< 3) [1,2,3,4,5,1,2,3] [3,4,5,1,2,3]
>>> dropWhile (< 9) [1,2,3] []
>>> dropWhile (< 0) [1,2,3] [1,2,3]