C111123313331323113313331333133313331323123231333133313232133121   >>    C11112331333132311331333133313331333132312323133313331323213312   <<    C111123313331323113313331333133313331323123231333133313232133123   >>      C111123313331323113313331333133313331323123231333133313232133122   >>