考友4
考友3
考友2:
(1)dcccd (6)acadc (11)cbdbd (16)bbcdb (21)bdccd (26)badaa (31) cbdcc (36)bacbb (41)bccaa (46)bcbcc (51)ccaca (56)bdcaa (61)ddbcd (66)bdacb (71)dbadd
考友1:
DCCCD ADCBC
CABDC DCADB
CDBBB AABAA
CDCCC DACCC
DBAAA BABCB
CCACD AABCD
DBBCD DBBCC
BBBBB