C2221232323213331311331333133313231333132313221323131212222211111   >>    C222123232321333131133133313331323133313231322132313121222221111   <<    C2221232323213331311331333133313231333132313221323131212222211113   >>      C2221232323213331311331333133313231333132313221323131212222211112   >>