3 3 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1.5 1 3.5 3.5 2 3 2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 2-3 2-3 2-3 2-3