import java.util.*;
import TennisBall;

class Q3 
{

   public static void main (String[] args)
   {
      Stack can = new Stack();
      TennisBall t1 = new TennisBall ("roja");
      TennisBall t2 = new TennisBall ("verde");
      TennisBall t3 = new TennisBall ("amarilla");

      System.out.println ("Pelota" + t1.getColor() + " dentro");
      can.push (t1);
      System.out.println ("Pelota" + t2.getColor() + " dentro");
      can.push (t2);
      System.out.println ("Pelota" + t3.getColor() + " dentro");
      can.push (t3);

      Stack can2 = new Stack();
      int cansize = can.size();
      for (int i=0; i< cansize; i++)
         can2.push (can.pop());

      for (int j=0; j<3; j++)
         System.out.println (("Pelota" + (TennisBall)can2.pop()).getColor() + " fuera"); 
   }
}