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