42     def arguments(self) -> List[str]:  argument
43         return [bignum_common.quote_str(n) for n in [self.arg_a,
44                                                      self.arg_b,
45                                                      self.arg_n]
46                ] + self.result()
48     def result(self) -> List[str]:  argument
49         result = (self.int_a - self.int_b) % self.int_n
50         return [self.format_result(result)]
73     def result(self) -> List[str]:  argument
74         result = (self.int_a + self.int_b) % self.int_n
75         return [self.format_result(result)]
94     def result(self) -> List[str]:  argument
95         result = self.to_montgomery(self.int_a)
96         return [self.format_result(result)]
107     def result(self) -> List[str]:  argument
108         result = self.from_montgomery(self.int_a)
109         return [self.format_result(result)]