integerLength 3 l
  | l <=   6  = 1
  | l <= 134  = 2
  | otherwise = 3
integerLength 3 l
  | l <=   6  = 1
  | l <= 134  = 2
  | otherwise = 3
integerLength 3 l
  | l <=   6  = 1
  | l <= 134  = 2
  | otherwise = 3