. 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 3 2 2 2 2 2 2 3 3 3 3 3 3 4 4 4 4 4 4 4 4 3 2 2 2 3 3 4 4 5 5 6 5 5 5 5 3 4 5 5 5 6 6 6.5 5.5 5.5 5.5 3.5 3.5 3.5 6 2.5 2 6.5 . . .