c = 7
world = "world"
value2 =
  let x = 'A'
      y = "hello"
      w = 123
      c = let
            x = 1
            y = 2.12
            c = let x = ()
                    y = 'C'
                    c = 3.12
                    d = w
                in world
          in ()
  in '7'