1-10 BBACC BCBAA 11-20 BACAB CCBBA
21-30 BCCCA BBCAB 31-40 CAABB BBABC
41-50 CCBBC BCACC 51-60 BACCC ACCCB(https://www.daowen.com)
61-70 CACCB BAACB 71-80 CBCCA ACBCB
81-82 AC
