C131121333133313233213331333133313331333133313331333133313331333111133331   >>    C13112133313331323321333133313331333133313331333133313331333133311113333   <<    C131121333133313233213331333133313331333133313331333133313331333111133333   >>      C131121333133313233213331333133313331333133313331333133313331333111133332   >>