2 2 2 2 2 2 2 2 1 1 1 2 1 3 3 3 3 3 3 3 2 2 1 1 1 3 4 3.5 0.5 1 1 0.5 2-3 2-3 2-3 1-2 1-2 1-2 1-2 1-2 1-2 1-2