C111123313331323113313331333132313331311331312111133133313112211233131   >>    C11112331333132311331333133313231333131133131211113313331311221123313   <<    C111123313331323113313331333132313331311331312111133133313112211233133   >>      C111123313331323113313331333132313331311331312111133133313112211233132   >>