C2221232323213331311331333133313231333132313221323131212222123111   >>    C222123232321333131133133313331323133313231322132313121222212311   <<    C2221232323213331311331333133313231333132313221323131212222123113   >>      C2221232323213331311331333133313231333132313221323131212222123112   >>