4 4 4 3 3 3 3 2 2 2 2 2 2 2 1 1 1 1 1 2 2 1 1 2 1 3 1 4.5 5 4 1 1.5 1-2 1-2 1-2 1-2 2-3 2-3 2-3 3-4 4-5