/**
 *  author:   TakeruOkuyama
 *  created:  2020-04-09 14:53:46
**/
#include <bits/stdc++.h>
#define rep(i, n) for(int i = 0; i < (n); i++)
using namespace std;
using ll = long long;
using P = pair<int, int>;

int main(){
    string S1, S2;
    cin >> S1 >> S2;
    if((S1 == "Sat" || S1 == "Sun") && (S2 == "Sat" || S2 == "Sun")){
        cout << "8/33" << endl;
    }else if(S1 == "Sat" || S1 == "Sun"){
        cout << "8/32" << endl;
    }else{
        cout << "8/31" << endl;
    }
return 0;}

/**
**/