1-10 CBCBC BCCBB 11-20 BBCAB CCCBA
21-30 CCAAC CCBBB 31-40 CCBBB CCCAC
41-50 BCBBC BCBAA 51-60 CBBCC BBBCC(https://www.daowen.com)
61-70 BBCCC CCBCB 71-74 CBCA
