. . . …… . . . . . . . . . . . | | | || | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | . | . | | | | | | | | | | . | | | . | | | | | | | | | | | | .| | | | | . | | | | | | | | | | | | | | | | | | | | | | | | | | | | | || | | | \| | | | | | ||| ||| ||| ||| | | | || || | | | | | | Wall, Wall, WALL.