C2221232323213331311331333133313231333132313221323131212121132113221211   >>    C222123232321333131133133313331323133313231322132313121212113211322121   <<    C2221232323213331311331333133313231333132313221323131212121132113221213   >>      C2221232323213331311331333133313231333132313221323131212121132113221212   >>