4 4 3 3 3 3 2 2 2 2 2 2 2 1 1 1 1 1 1 2 0.5 0.5 0.5 0.5 0.5 0 1.5 2 2.5 5 4 3 1 2 2-2.5 2-2.5 2-3 3-4 3-4 3-4 1-2 1.5-2 1-2 1-2 2-3 2-3