1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 3 3 3 2 3 3 3 3 4 4 4 4 5 4 6 6 6 7 1 3 3 . 3.5 7.5 6.5 6.5 4.5 4.5 4