C3123121111331312121111331333132313331333133313221211113313331122213233311   >>    C312312111133131212111133133313231333133313331322121111331333112221323331   <<    C3123121111331312121111331333132313331333133313221211113313331122213233313   >>      C3123121111331312121111331333132313331333133313221211113313331122213233312   >>