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

int main() {
    string s, t;
    cin >> s >> t;
    
    auto f = [](string &u) {
        return (u == "Sun") || (u == "Sat");
    };
    
    if (f(s) && f(t)) {
        cout << "8/33" << endl;
    } else if (f(s)) {
        cout << "8/32" << endl;
    } else {
        cout << "8/31" << endl;
    }
    
    return 0;
}