C2221232323213331311331333133313231333132313221323131211222233221   >>    C222123232321333131133133313331323133313231322132313121122223322   <<    C2221232323213331311331333133313231333132313221323131211222233223   >>      C2221232323213331311331333133313231333132313221323131211222233222   >>