. 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 4 4 4 5 5 5 6 7 . . . 1 0.5 0.5 0.5 0.5 1.5 4.5 7.5 5.5 3.5 1.5 1 1.5 2.5