// includes {{{
#include<iostream>
#include<iomanip>
#include<algorithm>
#include<vector>
#include<stack>
#include<queue>
#include<map>
#include<set>
#include<tuple>
#include<cmath>
#include<random>
#include<cassert>
#include<bitset>
#include<cstdlib>
// #include<deque>
// #include<multiset>
// #include<cstring>
// #include<bits/stdc++.h>
// }}}
using namespace std;
using ll = long long;

int main() {
  std::ios::sync_with_stdio(false), std::cin.tie(0);
  string s, t;
  cin >> s >> t;
  if(s == "Sat" || s == "Sun") {
    if(t == "Sat" || t == "Sun") {
      cout << "8/33" << endl;
    } else {
      cout << "8/32" << endl;
    }
  } else {
    cout << "8/31" << endl;
  }
  return 0;
}