#include <iostream>

void solve() {
    std::string s, t;
    std::cin >> s >> t;

    std::string ans;

    if (s != "Sat" && s != "Sun") {
        ans = "8/31";
    } else if (t != "Sat" && t != "Sun") {
        ans = "8/32";
    } else {
        ans = "8/33";
    }

    std::cout << ans << std::endl;
}

int main() {
    std::cin.tie(nullptr);
    std::ios::sync_with_stdio(false);

    solve();

    return 0;
}