#ifndef RATIONAL_H_
#define RATIONAL_H_

#include <iostream>
#include <sstream>

class Rational {

	public:
		Rational(int n = 0, int d = 1);
		int setNum(int n);
		int setDenum(int n);
		friend Rational operator+ (const Rational& r1, const Rational& r2);
		friend Rational operator- (const Rational& r1, const Rational& r2);
		friend Rational operator* (const Rational& r1, const Rational& r2);
		friend Rational operator/ (const Rational& r1, const Rational& r2);
		friend std::ostream& operator<< (std::ostream& out, const Rational& r);
		friend std::istream& operator>> (std::istream& in, Rational& r);
	private:
		int num;
		int den;
};
#endif

#include<iostream>
#include "Rational.h"

using namespace std;

Rational::Rational(int n, int d){
	//empty constructor
	
}


Rational operator+ (const Rational& r1, const Rational& r2){
	return r1;
}
	
Rational operator- (const Rational& r1, const Rational& r2){
	return r1;
}
	
Rational operator* (const Rational& r1, const Rational& r2){
	return r1;
}
	
Rational operator/ (const Rational& r1, const Rational& r2){
	return r1;
}


ostream& operator<< (ostream& out, const Rational& r){ //output
	return out;
}

istream& operator>> (istream& in, Rational& r){		//input
	char slash;
	int n, d;
	if(in >> n >> slash >> d){
		num = n;
		den = d;
	}
	return in;
}