#include<iostream>
#include<cmath>
using namespace std;

int main()
{
	int a,b,c,xb,db;
	cin>>a>>b>>c;
	if(a>b){
		if(a>c){
			xb=a;
			db=b;
		}
		else{
			xb=c;
			db=b;
		}
	}
	else{
		if(b>c){
			xb=b;
			db=a;
		}
		else{
			xb=c;
			db=a;
		}
	}
	cout<<db<<"/"<<xb;
return 0;}