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

bool yasumi(string s){
    return s == "Sun" || s == "Sat";
}

int main(){
    string s1, s2;
    cin >> s1 >> s2;
    if(yasumi(s1) && yasumi(s2)){
        cout << "8/33" << endl;
    }else if(yasumi(s1)){
        cout << "8/32" << endl;
    }else{
        cout << "8/31" << endl;
    }
    return 0;
}