static void Main() { Stack stack = new Stack(); stack.Push(1); stack.Push(2); stack.Push(3); stack.Pop(); Console.WriteLine(stack.Count+ " " + stack.Contains(1)); stack.PrintStack(); Console.WriteLine("Top element:"+stack.Peek()); Console.WriteLine("**************************"); Stack<int> stack1 = new Stack<int>(); stack1.Push(1); stack1.Push(2); stack1.Push(3); stack1.Pop(); Console.WriteLine(stack1.Count + " " + stack1.Contains(1)); foreach (int i in stack1) { Console.WriteLine(i); } Console.WriteLine("Top element:"+stack1.Peek()); }