#include<iostream>
#include<algorithm>
#include<cmath>
using namespace std;
int main() {
  string s,t;
  cin >> s >> t;
  if((s=="Sun"||s=="Sat")&&(t!="Sun"&&t!="Sat")) {
    cout << "8/32" << endl;
  }
  else if((s=="Sun"||s=="Sat")&&(t=="Sun"||t=="Sat")) {
      cout << "8/33" << endl;
  }
  else {
      cout << "8/31" << endl;
  }
}