C111123313331323113313331323133313331311331311331323331323132322223111   >>    C11112331333132311331333132313331333131133131133132333132313232222311   <<    C111123313331323113313331323133313331311331311331323331323132322223113   >>      C111123313331323113313331323133313331311331311331323331323132322223112   >>