C1311213331333132332133313331333133313331333133313331333131121333311213111   >>    C131121333133313233213331333133313331333133313331333133313112133331121311   <<    C1311213331333132332133313331333133313331333133313331333131121333311213113   >>      C1311213331333132332133313331333133313331333133313331333131121333311213112   >>