C111123313331323113313331333133313331122112312111133133313331333133112231   >>    C11112331333132311331333133313331333112211231211113313331333133313311223   <<    C111123313331323113313331333133313331122112312111133133313331333133112233   >>      C111123313331323113313331333133313331122112312111133133313331333133112232   >>