/// <summary>
        /// Method for taking input from user
        /// </summary>
        /// <returns>returns class object</returns>
        private static IntegerSet inputset()
        {
            Char       ch;
            IntegerSet set1 = new IntegerSet(); //Instance of class
            List <int> lis  = new List <int>(); //for storing input values

            //for taking input
            do                                           //Loop for continuing
            {
                Console.WriteLine("Enter the number to Set");
                int A = Convert.ToInt32(Console.ReadLine());
                if (A > 0 && A < 101)                     //to check the input is withini valid range
                {
                    lis.Add(A);                           //Adding input to the list
                    set1 = new IntegerSet(lis.ToArray()); //Assigning list elements to the class instance
                }
                //statement for asking to add another element into set
                Console.WriteLine("Do you want to add element (Y/N)?");
                ch = Convert.ToChar(Console.ReadLine().ToUpper());
            } while (ch.Equals(Char.Parse("Y")));   //condition for continuing the loop
            return(set1);
        }