1 5 1 3 1 4 S 1 6 2 S S 2 2 S 1 1 8 1 9 1 7 2 0 S S 2 2 S 2 S 1 2 1 2 2 2 3 2 4 S 2 S 2 S 1 S 1 2 5 2 6 2 7 2 8 S S 2 2 S S 1 1 30