#include <iostream>
using namespace std;
int main(){
    string str1,str2;
    cin >> str1 >> str2;
    if(str1=="Sat" || str1=="Sun"){
        if(str2=="Sat" || str2 == "Sun")cout << "8/33" << endl;
        else cout << "8/32" << endl;
    }else{
     cout << "8/31" << endl;   
    }
    return 0;
}