15.3 15.2 15.1 14 13.3 13.2 13.1 12 11p 11q 11.2 12 13.1 13.2 13.3 14 15 21 22 23.1 23.2 23.3 31.1 31.2 31.3 32 33.1 33.2 33.3 34 35.1 35.2 35.3