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