#include <iostream>
using namespace std;
int main(){
    string a,b;cin>>a>>b;
    if(a=="Sun"||a=="Sat"){
        if(b=="Sun"||b=="Sat"){
            cout << "8/33" << endl;
            return 0;
        }
        cout << "8/32" << endl;
        return 0;
    }
    cout << "8/31" << endl;
}