1 1 1 b n 2 y 3 f 4 j ng 5 d n 6 c 7 g u 8 l 2 A b s f B y ng w j n xi n C j n z o x D yu n bi n n n di y 3 1 2 3 4 5 6 7 8 9 10 11 12 4 A B C D 5 1 2 3 4 5 6 7 2 8 9 10 6 1 2 3 4 7 A B C D 8 1 A B C D 2 A B C A B A 3 B C 3 A B C A B C A B C 9 1 2 3 4 5 6 10 A B C D
