C1311213331333132332133313331333133313331311331333133313332222331   >>    C131121333133313233213331333133313331333131133133313331333222233   <<    C1311213331333132332133313331333133313331311331333133313332222333   >>      C1311213331333132332133313331333133313331311331333133313332222332   >>