(self, other)
| 18 | return (self, F(other)) |
| 19 | return (self, other) |
| 20 | def __add__(self, other): |
| 21 | return F(self.value + other.value, self.full + other.full) |
| 22 | def __sub__(self, other): |
| 23 | return F(self.value - other.value, self.full - other.full) |
| 24 | def __mul__(self, other): |