C111123313331323113313331323133313331311331311331323133311211111   >>    C11112331333132311331333132313331333131133131133132313331121111   <<    C111123313331323113313331323133313331311331311331323133311211113   >>      C111123313331323113313331323133313331311331311331323133311211112   >>