651703
1-5:CBBAB 6-10:CBABB
11.BCD 12.ABC 13.ABCD
14.ABCD 15.ACD
1 C
2 B
3 B
4 A
5 B
6 C
7 B
8 A
9 B
10 B
11 BCD
12 ABC
13 ABCD
14 ABCD
15 ACD
1C
2C\D\B
3B\C\D
4A
5B
6B\D\C
7C\B\A\D
8A
9D\B\C\A
10B
11ABCD\ABD\ABC\BCD
12ABCD\ABD\ABC
13ABCD
14ABCD
15ACD