4 3 3 2 2 1 1 1 2 2 2 2 2 2 2 2 3 3 1 3 3 3 2 1 1 1 1 1 1 1 3 0 2 2.5 3.5 3.5 2 1 1 1 1.5 0.5 4.5 4 0 .