C11112331312111112111133133313331333132323213311331323132233121   >>    C1111233131211111211113313331333133313232321331133132313223312   <<    C11112331312111112111133133313331333132323213311331323132233123   >>      C11112331312111112111133133313331333132323213311331323132233122   >>