C1311213331333132332133313331333133313121111331333133313223331213311   >>    C131121333133313233213331333133313331312111133133313331322333121331   <<    C1311213331333132332133313331333133313121111331333133313223331213313   >>      C1311213331333132332133313331333133313121111331333133313223331213312   >>