C222133313331333131123313231333133313331333133313331333133313113313332212121   >>    C22213331333133313112331323133313331333133313331333133313331311331333221212   <<    C222133313331333131123313231333133313331333133313331333133313113313332212123   >>      C222133313331333131123313231333133313331333133313331333133313113313332212122   >>