4 4 4 3 5 5 5 6 3 3 3 3 3 3 2 2 2 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 2 1.5 6 7 3.5 2 0.5 0.5 0.5 . 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 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 2-3 2-3