C11112331333132311331333132313331323331323131231211221123231131   >>    C1111233133313231133133313231333132333132313123121122112323113   <<    C11112331333132311331333132313331323331323131231211221123231133   >>      C11112331333132311331333132313331323331323131231211221123231132   >>