答案如下
1~5 6~10
ABDAC BDACB
11~15 16~20
ABBCC BAAAD
21~25 26~30
CBCAA DCCBB
31~35 36~40
CADDC DDDCA
41~45 46~50
ACBBC DDDAB
51~55 56~60
CCBBA CABDC
61~65 66~70
ABCBC BAAAC
71~75 76~80
DCDCC BDACD
--
1~5 6~10
ABDAC BDACB
11~15 16~20
ABBCC BAAAD
21~25 26~30
CBCAA DCCBB
31~35 36~40
CADDC DDDCA
41~45 46~50
ACBBC DDDAB
51~55 56~60
CCBBA CABDC
61~65 66~70
ABCBC BAAAC
71~75 76~80
DCDCC BDACD
--
All Comments