#include<iostream>

using namespace std;

int main() {
    int cnt = 0;
    string s1, s2;
    cin >> s1 >> s2;

    if(s1 == "Sat" || s1 == "Sun") {
        cnt++;
        if(s2 == "Sat" || s2 == "Sun") {
            cnt++;
        }
    }
    

    if(cnt==2) {
        cout << "8/33" << endl;
    } else if(cnt==1) {
        cout << "8/32" << endl;
    } else {
        cout << "8/31" << endl;
    }

}