What will be the output of the following Java program?

import java.util.*;
public class genericstack  
{
    Stack  stk = new Stack ();
public void push(E obj)
    {
        stk.push(obj);
}
public E pop()
    {
        E obj = stk.pop();
  return obj;
}
}
class Output
{
    public static void main(String args[])
    {
        genericstack  gs = new genericstack();
        gs.push("Hello");
        System.out.print(gs.pop() + " ");
        genericstack  gs = new genericstack();
        gs.push(36);
        System.out.println(gs.pop());
    }
}