C2221232323213331311331333133313231333132313221323131212121223321   >>    C222123232321333131133133313331323133313231322132313121212122332   <<    C2221232323213331311331333133313231333132313221323131212121223323   >>      C2221232323213331311331333133313231333132313221323131212121223322   >>