class TestFactorial {
  public static void main(String [] args) {
    Factorial f1;
    f1= new Factorial();
    System.out.println(f1.calcula());
    System.out.println(f1.pasos);
    f1.pasos=0;
    System.out.println(f1.calcula(7));
    System.out.println(f1.pasos);

  }

}