#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
  #define _GLIBCXX_DEBUG
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

inline bool f(string s) { return s == "Sat" || s == "Sun"; }

int main() {
  string s, t;
  cin >> s >> t;
  if (f(s) && f(t)) {
    cout << "8/33" << endl;
  }
  else if (f(s) || f(t)) {
    cout << "8/32" << endl;
  }
  else {
    cout << "8/31" << endl;
  }
  return 0;
}