4 4 4 4 3 3 3 3 2 2 2 2 2 2 2 1 2 1 1 1 1 2 5 4.5 2.5 4.5 1 1 1 1 1-2 1-2 1-2 1-2 1-2 2-3 2-3 3-4 3-4 4-5