C111123313121111121111331333133313331333112221211111133133313223331213331   >>    C11112331312111112111133133313331333133311222121111113313331322333121333   <<    C111123313121111121111331333133313331333112221211111133133313223331213333   >>      C111123313121111121111331333133313331333112221211111133133313223331213332   >>