1-5 ABCAD
6-10 ACCAD
11-15 DCADB
16-20 BDDAC
21-25 DBADB
26-30 CCBCA
31-35 DACBD
36-40 CBACB
41-45 DCADB
46-50 BCDBB
51-55 CDBAC
56-60 BDCAA
61-65 BDABA
66-70 CABDA
71-75 CCDAC
76-80 CADBA
81-85 CACDB
86-90 DACBC
91-95 BDDAC
96-100 DAABA