C11112331312111112111133133313331333132323213311331323133313331312111111322231   >>    C1111233131211111211113313331333133313232321331133132313331333131211111132223   <<    C11112331312111112111133133313331333132323213311331323133313331312111111322233   >>      C11112331312111112111133133313331333132323213311331323133313331312111111322232   >>