答案
1----5 AAAAA 6----10 AAAAA 11----15 AAAAA 16----20 AAAAA
21----25A DDDD 26----30 DDDDD 31-----35 DDDDD 36---40 DDDDD
41--- 45DDBAC 46----50 BCBBA 51----55BBCCD 56----60 BBDAC
61----65ABDBB 66----70AABAB 71----75BDABA 76----80 ADBBC
81----85CDDCB 86----90BABDA 91----95ABDBB 96----100 DDBCB
