1-10 B B D D C C D B D B 11-20 D B A D A C C D A A21-30 DD C A C C B A B B 31-36 C A A B B C
1~5 BBCDA6~10 CACDA11~15 DBADA16~20 BCDAA21~25 BDADC26~30 CBABB31~36 CBBBBC
