C2221232323213331311331333133313231333132313221323131212123121111   >>    C222123232321333131133133313331323133313231322132313121212312111   <<    C2221232323213331311331333133313231333132313221323131212123121113   >>      C2221232323213331311331333133313231333132313221323131212123121112   >>