C3123121111331312121111331333133313331333121333131133133313113313232131   >>    C312312111133131212111133133313331333133312133313113313331311331323213   <<    C3123121111331312121111331333133313331333121333131133133313113313232133   >>      C3123121111331312121111331333133313331333121333131133133313113313232132   >>