#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <iomanip>
#include <stack>
#include <algorithm>
#include <string>
#include <map>
#include <iterator>
#include <set>
#include <queue>
#include <bitset>
#include <cassert>

using namespace std;

bool m(const string &s) {
    return s == "Sat" or s == "Sun";
}

int main() {

    string S1, S2;
    cin >> S1 >> S2;

    if (m(S1) and m(S2)) {
        cout << "8/33" << endl;
    } else if (m(S1) and not(m(S2))) {
        cout << "8/32" << endl;
    } else {
        cout << "8/31" << endl;
    }

    return 0;
}