6-10 CCBAB
11-15 CDCDB
16-20 BACCB
21-25 ACDCA
26-30 FEAFB
31-35 CBBDC
36-40 CA BAD
41-45 DDCAB
46-50 FADEB
51-55 BCBDB
56-60 CADAD
61-65 BCABC