C111123313331323113313331333133313331323123231333133313221333131231   >>    C11112331333132311331333133313331333132312323133313331322133313123   <<    C111123313331323113313331333133313331323123231333133313221333131233   >>      C111123313331323113313331333133313331323123231333133313221333131232   >>