// #define _GLIBCXX_DEBUG
#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i = 0; i < (int)(n); ++i)
int main() {
    // Input
    string S1, S2;
    cin >> S1 >> S2;

    // Output
    bool b1 = (S1 == "Sat" || S1 == "Sun");
    bool b2 = (S2 == "Sat" || S2 == "Sun");
    if (b1 && b2) cout << "8/33" << endl;
    else if (b1) cout << "8/32" << endl;
    else cout << "8/31" << endl;
}