C111123313331323113313331333133313331122112312111133133313112233131   >>    C11112331333132311331333133313331333112211231211113313331311223313   <<    C111123313331323113313331333133313331122112312111133133313112233133   >>      C111123313331323113313331333133313331122112312111133133313112233132   >>