C2221232323213331311331333133313231333132313221323131213323311321   >>    C222123232321333131133133313331323133313231322132313121332331132   <<    C2221232323213331311331333133313231333132313221323131213323311323   >>      C2221232323213331311331333133313231333132313221323131213323311322   >>