C2221232323213331311331333133313231333132313221323131212121232131   >>    C222123232321333131133133313331323133313231322132313121212123213   <<    C2221232323213331311331333133313231333132313221323131212121232133   >>      C2221232323213331311331333133313231333132313221323131212121232132   >>