C131121333133313233213331333133313331312111133133313331312133311331   >>    C13112133313331323321333133313331333131211113313331333131213331133   <<    C131121333133313233213331333133313331312111133133313331312133311333   >>      C131121333133313233213331333133313331312111133133313331312133311332   >>