#include<iostream>
using namespace std;
int main(){
	int a,b,c;
	cin>>a>>b>>c;
	if(a<c&&c<b) cout<<a<<"/"<<b;
	if(a<b&&b<c) cout<<a<<"/"<<c;
	if(b<c&&c<a) cout<<b<<"/"<<a;
	if(b<a&&a<c) cout<<b<<"/"<<c;
	if(c<a&&a<b) cout<<c<<"/"<<b;
	if(c<b&&b<a) cout<<c<<"/"<<a;
	return 0;
}