C3123121111331312121111331333133313331333121333131133133313332331133132233121   >>    C312312111133131212111133133313331333133312133313113313331333233113313223312   <<    C3123121111331312121111331333133313331333121333131133133313332331133132233123   >>      C3123121111331312121111331333133313331333121333131133133313332331133132233122   >>