#include "complex.h"
#include <iostream>
#include <fstream>
using namespace std;
int main()
{
	ifstream fin ("infile.txt");
	ofstream fout ("outfile.txt");
	
	complex p, q;
	fin >> p >> q;
	
	complex sum 		= p + q;
	complex difference 	= p - q;
	complex product 	= p * q;
	complex quotient 	= p / q;
	
	fout << p << " + " << q << " = " << sum << endl;
	fout << p << " - " << q << " = " << difference << endl;
	fout << p << " * " << q << " = " << product << endl;
	fout << p << " / " << q << " = " << quotient << endl;
	
	return 0;
}