8 7 6 5 5 4 4 4 3 3 3 3 3 3 3 2 2 2 2 2 2 2 2 2 2 2 2 8.5 4.5 0.5 0.5 3.5 1 1 1 1 1 1 1 1 1 1 1 . 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 0.5-1 0.5-1 0.5-1 0.5-1 0.5-1 2-3 2-3 2-3 2-3 2-3 2-3 2-3 3-4 3-4 3-4