C3123121111113313121111331333133313121111133313223313133313331312233121   >>    C312312111111331312111133133313331312111113331322331313331333131223312   <<    C3123121111113313121111331333133313121111133313223313133313331312233123   >>      C3123121111113313121111331333133313121111133313223313133313331312233122   >>