CCBA
1c
2c
1-4 CCBA
5-8 ABBB
9-12 ACBB
13-16 CBDA
17-20 DCBC
21-24 BDAD
25-28 DADC
29-32 BCCA
33-36 BCAB
37-40 CCDB
41-44 DBAB
45-48 BADC
49-50 DC
Wang Na
2021.3.25
c c b a a b b b a c b b c b d a d c b c b d a d d d a
