C3123121111331312121111331333133313331333121333131133133313332213223313132121   >>    C312312111133131212111133133313331333133312133313113313331333221322331313212   <<    C3123121111331312121111331333133313331333121333131133133313332213223313132123   >>      C3123121111331312121111331333133313331333121333131133133313332213223313132122   >>