static void MapTwo()
        {
            List <string> l = new List <string>(
                new string[] { "Aurelie", "Fabrice",
                               "Ibrahima", "Lionel" });
            List <string> ie =
                DemoModule.filterStringListDelegate(
                    delegate(string s) { return(s.StartsWith("A")); }, l);

            foreach (string s in ie)
            {
                Console.WriteLine(s);
            }
        }