C111123313331323113313331323133313331311331311331323133313233311231333112331   >>    C11112331333132311331333132313331333131133131133132313331323331123133311233   <<    C111123313331323113313331323133313331311331311331323133313233311231333112333   >>      C111123313331323113313331323133313331311331311331323133313233311231333112332   >>