#include <cstdio>
#include <cstring>
#include <iostream>
#include <string>
#include <cmath>
#include <bitset>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <deque>
#include <algorithm>
#include <complex>
#include <unordered_map>
#include <unordered_set>
#include <random>
#include <cassert>
#include <fstream>
#define popcount __builtin_popcount
using namespace std;
typedef long long int ll;
typedef pair<int, int> P;

int main()
{
    string s1, s2; cin>>s1>>s2;
    int a=0, b=0;
    if(s1=="Sat" || s1=="Sun") a=1;
    if(s2=="Sat" || s2=="Sun") b=1;
    if(a && b) cout<<"8/33"<<endl;
    else if(a) cout<<"8/32"<<endl;
    else cout<<"8/31"<<endl;
    return 0;
}