1-5 DCBAB
6-10 BABBC
11-15 ABACD
16-20 CBBA C
21-25 AAEBA
26-30 DFEAC
31-35 CACBD
36-40 CBBAD
41-45 CCACD
46-50 BCDEF
51-55 BACDB
56-60 DCBCC
61-65 ADDAA
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