C111123313331323113313331333132313331311331312111133132313311232233131   >>    C11112331333132311331333133313231333131133131211113313231331123223313   <<    C111123313331323113313331333132313331311331312111133132313311232233133   >>      C111123313331323113313331333132313331311331312111133132313311232233132   >>