static void Main(string[] args)
{
MyStack <int> myStack = new MyStack <int>(1);
Console.WriteLine(myStack.PopItem()._value);
MyStack <int> myStack2 = new MyStack <int>(1);
myStack2.PushItem(2);
myStack2.PushItem(3);
foreach (var x in myStack2)
{
Console.WriteLine(x);
}
}
public MyStackEnumerator(MyStack <T> stack)
{
this.stack = stack;
}