C3123121111331312121111331333133313331333121333133313331133123311   >>    C312312111133131212111133133313331333133312133313331333113312331   <<    C3123121111331312121111331333133313331333121333133313331133123313   >>      C3123121111331312121111331333133313331333121333133313331133123312   >>