. 5.5 5 2 0.5 0.5 2 1.5 2.5 5 4 4 3 2 2 1 1 1 2 1 1 1 1 1 1 1 1 1 . . . 0-1 0-1 0-1 0-1 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2