C1311213331333132332133313331333133313331333133313331313311211223321   >>    C131121333133313233213331333133313331333133313331333131331121122332   <<    C1311213331333132332133313331333133313331333133313331313311211223323   >>      C1311213331333132332133313331333133313331333133313331313311211223322   >>