#include <iostream>
#include <string>
using namespace std;

int main() {
  string S1, S2;
  cin >> S1 >> S2;
  if ((S1 == "Sat" || S1 == "Sun") && (S2 == "Sat" || S2 == "Sun"))
    cout << "8/33" << endl;
  else if (S1 == "Sat" || S1 == "Sun")
    cout << "8/32" << endl;
}