#include "complex.h"

Complex Complex::operator+(const Complex& d){
  return Complex(re+d.re, im+d.im);
}
 
Complex Complex::operator-(const Complex& d){
  return Complex(re-d.re, im-d.im);
}
 
Complex& Complex::operator+=(const Complex& d){
  re+=d.re;
  im+=d.im;
  return *this;
}
 
std::ostream& operator<<(std::ostream& out, const Complex& z){
   out << "(" << z.re << "," << z.im << ")"<< std::endl;
   return out;
}
 
std::istream& operator>>(std::istream& is, Complex& z){
  is >> z.re >> z.im;
  return is;
}