8 5 5 5 5 4 4 4 4 4 4 4 4 4 4 4 3 3 3 3 3 3 3 3 3 3 3 3 3 3 2 2 1 1 2 2 2 2 2 2 2 2 1 1 2 2 1 1 2 2 2 1 1 1 1 4.5 1 8.5 5.5 1 1 2 4 3 0 1 3 1 6 6 3 . 2-3 2-3 2-3 2-3 2-3 2-3 3-4 3-4 3-4 3-4 3-4 4-5 4-5 5-6 1-2 1-2 1-2 1-2 1-2