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