@Test
  public void test2() {

    assertFalse(validator52.isValid("45001500", "13051172"));
    assertFalse(validator52.isValid("82335729", "13051172"));
    assertFalse(validator52.isValid("29837521", "13051172"));
  }
  @Test
  public void test1() {

    assertTrue(validator52.isValid("43001500", "13051172"));
    // TODO: Check this number
    // assertTrue(validator52.isValid("48726458", "13051172"));
  }