#ElementaryMath #Probability #Codeforces #Solved #Easy

A. Die Roll.cpp

//http://codeforces.com/contest/9/problem/A
#include <bits/stdc++.h>

#define ll long long
#define sz(v) ((int) ((v).size()))
#define clr(v, d) memset(v, d, sizeof(v))
#define lp(i, n) for(int i = 0; i < (int)(n); ++i)
#define rep(i, v) for(int i = 0; i < sz(v); ++i)

using namespace std;
int y, w;

int main() {
    cin>>y>>w;
    int a = 6 - max(y, w) +1;
    int b = 6;
    if(a == 6) {cout << "1/1" << endl; return 0;}
    for(int i = a; i > 1; i--) {
        if(a % i == 0 && b % i == 0) {
            a = a/i;
            b = b / i;
        }
    }
    if(a == 0) cout << "0/1" << endl;
    else {
        cout << a << "/" << b << endl;
    }
}