. 1 1 2 2 2 2 2 2 3 3 4 3 3 3 3 1 2 3 3 3 2 2 4 4 4 4 5 5 6 7 1 1 4 4 4 4 4 3 3 3 4 4 5 5 5 6 6 7 7 8 . . . . 3 5 0.5 1.5 4.5 7.5 1.5 1.5 1 1 8.5 2.5 3.5 0.5 0.5 5.5 4.5 2.5