#include <iostream>
#include <vector>
#include <string>
#include <cstring>
using namespace std;
class faction{
	int x;
	int y;
public:
	faction(int a, int b){
		x=a;
		y=b;
	}
	faction(){
		x=0;
		y=0;
	}
	void setFrac(string a){
		if(a.size()==3){
			switch(a[0]){
				case '/':
					return;
				case '1':
					x=1;
					break;
				case '2':
					x=2;
					break;
				case '3':
					x=3;
					break;
				case '4':
					x=4;
					break;
				case '5':
					x=5;
					break;
				case '6':
					x=6;
					break;
				case '7':
					x=7;
					break;
				case '8':
					x=8;
					break;
				case '9':
					x=9;
					break;
				case '0':
					x=0;
					break;
				default:
					return;
			}
			switch(a[1]){
				case '/':
					break;
				default:
					return;
			}
			switch(a[2]){
				case '/':
					return;
				case '1':
					y=1;
					break;
				case '2':
					y=2;
					break;
				case '3':
					y=3;
					break;
				case '4':
					y=4;
					break;
				case '5':
					y=5;
					break;
				case '6':
					y=6;
					break;
				case '7':
					y=7;
					break;
				case '8':
					y=8;
					break;
				case '9':
					y=9;
					break;
				case '0':
					y=0;
					break;
				default:
					return;
			}
		}
	}
	void getFrac(){
		cout<<x<<"/"<<y<<endl;
	}
	int getX(){
		return x;
	}
	int getY(){
		return y;
	}
	void sumFrac(faction a){
		x=x+a.getX();
		y=y+a.getY();
		getFrac();
	}
};

int main() {
	faction a(0, 0);
	faction b(0, 0);
	faction c(0, 0);
	string a1="y";
	string b1;
	while(a1=="y"){
		cin>>b1;
		a.setFrac(b1);//
		cin>>b1;
		b.setFrac(b1);//
		a.sumFrac(b);//
		cout<<"Wanna continue? y/n"<<endl;
		a1="n";
		cin>>a1;
	}
}