C1311213331333132332133313331333133313121111331333133313233313223331   >>    C131121333133313233213331333133313331312111133133313331323331322333   <<    C1311213331333132332133313331333133313121111331333133313233313223333   >>      C1311213331333132332133313331333133313121111331333133313233313223332   >>