#include<bits/stdc++.h>
using namespace std;
using ll = long long;

template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }

#define FOR(i,a,b) for(ll i=(a);i<(b);++i)
#define ALL(v) (v).begin(), (v).end()
#define p(s) cout<<(s)<<endl
#define p2(s, t) cout << (s) << " " << (t) << endl
#define br() p("")
#define pn(s) cout << (#s) << " " << (s) << endl
#define p_yes() p("Yes")
#define p_no() p("No")

bool is_sat_or_sun(string s){
    if(s=="Sat" || s=="Sun"){
        return true;
    }else{
        return false;
    }
}

int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);

    // input
    string s, t;
    cin >> s >> t;
    
    auto b0 = is_sat_or_sun(s);
    auto b1 = is_sat_or_sun(t);

    if(b0 && b1){
        p("8/33");
    }
    else if(b0 || b1){
        p("8/32");
    }else{
        p("8/31");
    }
    
    return 0;
}