1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 3 3 3 4 4 3 3 3 2 4.5 3.5 1.5 1 0.5 2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 0-1 0-1 0-1