C111123313331323113313331333133313331323123231333132322211232323131   >>    C11112331333132311331333133313331333132312323133313232221123232313   <<    C111123313331323113313331333133313331323123231333132322211232323133   >>      C111123313331323113313331333133313331323123231333132322211232323132   >>