#include<bits/stdc++.h> 
#define ll long long
using namespace std;

int getMax(ll a,ll b,ll c)
{
	return (a>b?(a>c?a:c):(b>c?b:c));
}

int getMin(ll a,ll b,ll c)
{
	return (a>b?(b>c?c:b):(a>c?c:a));
}

int main()
{
    ll m,n,o;
    ll max,min;
    cin>>m>>n>>o;
    max=getMax(m,n,o);
    min=getMin(m,n,o);
    cout<<min<<"/"<<max;
}

本笱糅在此求助为毛监测点2死活过不去