DBCDA DCCBA DBDCA BBBDD ACDAA ACD ABCD ABCE ABCD ABCD BCD CD ABC AC ABC AD BCD ABD ABC ABC ABCD BD ABCDE ABCDEF BC
DDABA
ADCBA
CBBCA
DDCBB
AB
ABCD
ABC
BCD
ACD
OOXXX
OOOOO
OOXOO
