C3123121111331312121111331333132313331323113313331333133313232113331211   >>    C312312111133131212111133133313231333132311331333133313331323211333121   <<    C3123121111331312121111331333132313331323113313331333133313232113331213   >>      C3123121111331312121111331333132313331323113313331333133313232113331212   >>