def test_equal_2(self): self.assertEqual(decode('4103438970'), '6957672135')
def test_equal_1(self): self.assertEqual(decode('4103432323'), '6957678787')
def test_equal_4(self): self.assertEqual(decode('4102204351'), '6958856709')
def test_equal_5(self): self.assertEqual(decode('4107056043'), '6953504567')
def test_equal_3(self): self.assertEqual(decode('4104305768'), '6956750342')