using System;

using System.Collections;

​

namespace temp

{

    class Program

    {

        private static Stack myStack = new Stack();

        private static int[] arr = {1, 2, 3, 4, 5, 6};

​

        public static void Main()

        {

            bool flag = true;

            while (flag)

            {

                Console.WriteLine(" 1. insert array to stack " +

                                  "\n 2. Delete Element in stack" +

                                  "\n 3. Show Elements in stack " +

                                  "\n 4. Exit "

                                  );

                char selector = Convert.ToChar(Console.ReadLine());

                switch (selector)

                {

                    case '1':

                        for (int i = 0; i < arr.Length; i++)

                        {

                            myStack.Push(arr[i] + "");

                        }

​

                        break;

                    case '2':

                        for (int i = 0; i < myStack.Count; i++)

                        {

                            myStack.Pop();

                        }

​

                        break;

                    case '3':

                        Stack temp = new Stack();

                        temp = (Stack) myStack.Clone();

                        for (int i = 0; i < arr.Length; i++)

                        {

                            Console.WriteLine(temp.Pop());

                        }

                        break;

                    case '4':

                        flag = false;

                        break;

                }

            }

        }

    }

}