. 1 2 2 2 2 1 1 1 2 3 3 3 2 2 3 3 3 3 3 3 3 4 4 4 4 5 4 4 4 4 4 5 5 5 5 6 6 6 7 7 8 8 9 9 10 11 8 9 6 2 1 1 2 2 . . . . 1.5 1.5 1.5 1.5 0.5 1 4 3.5 0.5 0.5 12 5 10 6 3 3 2.5 2.5 2.5 0.5 3.5 1.5