C111123313331323113313331333132313331311331312111133132211312111   >>    C11112331333132311331333133313231333131133131211113313221131211   <<    C111123313331323113313331333132313331311331312111133132211312113   >>      C111123313331323113313331333132313331311331312111133132211312112   >>