#include <iostream>
#include <string>
using namespace std;
int main(){
    string s1, s2;
    cin >> s1 >> s2;
    if(s1=="Sat" || s1=="Sun"){
        if(s2=="Sat" || s2=="Sun") cout << "8/33" <<endl;
        else cout << "8/32" <<endl;
    }
    else cout << "8/31" <<endl;
    return 0;
}