static void Main(string[] args)
{
Console.WriteLine("Integer Stack.\n");
//Create an integer stack
Stack <int> intStack = new Stack <int>();
intStack.Push(1);
intStack.Push(2);
intStack.PrintStack();
Console.WriteLine("\nString Stack.\n");
Stack <string> stringStack = new Stack <string>();
stringStack.Push("Hi");
stringStack.Push("Hello");
stringStack.PrintStack();
stringStack.Pop();
stringStack.PrintStack();
}