public static void Task9(IGraphAtoFactory graphFactory)
        {
            //var graph = graphFactory.CreateOrgraph(("F", "A"), ("C", "A"), ("A", "B"),
            //                                       ("F", "B"), ("B", "E"), ("B", "C"),
            //                                       ("F", "C"), ("D", "F"),
            //                                       ("E", "C"), ("C", "D"), ("D", "C"),
            //                                       ("E", "D"));
            var graph = graphFactory.CreateOrgraph(new int[, ] {
                { 0, 0, 1, 1 },
                { 0, 0, 1, 1 },
                { 1, 1, 0, 1 },
                { 1, 1, 1, 0 },
            },
                                                   "A", "B", "C", "D");

            Console.WriteLine(graph);
            var result = graph.ApplayRobertsFlores(graphFactory).ToList();

            result.ForEach(Console.WriteLine);
        }