C131121333133313233213331333133313331333133313231311331333122331   >>    C13112133313331323321333133313331333133313331323131133133312233   <<    C131121333133313233213331333133313331333133313231311331333122333   >>      C131121333133313233213331333133313331333133313231311331333122332   >>