. 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 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 5 5 5 . . . . . 5.5 5.5 4.5 4.5 4 4.5 1 - 1.5 1 - 1.5 1 - 1.5 2 - 2.5 2 - 2.5 3.5