public static void Main (string[] args)
        {
            Func<dynamic, dynamic> returnStr = arg => ReturnString (arg);
            Console.WriteLine (returnStr("qwe"));

            Func<dynamic, dynamic> returnInt = arg => ReturnInt (arg);
            Console.WriteLine (returnInt(40));


        }

        private static string ReturnString(string _string)
        {
            return _string;
        }

        private static int ReturnInt(int integer)
        {
            return integer;
        }