#include<iostream>
#include<string>
#include<iomanip>
#include<cmath>
#include<vector>
#include<algorithm>

using namespace std;

#define int long long
#define rep(i,n) for(int i = 0; i < (n); i++)
#define endl "\n"

const long long INF = (long long)1e18;
const long long MOD = (long long)1e9 + 7; 

string yn(bool f){return f?"Yes":"No";}
string YN(bool f){return f?"YES":"NO";}

#define MAX

signed main(){
	cin.tie(0);
	ios::sync_with_stdio(false);
	cout<<fixed<<setprecision(10);
	
	string s, s2;
	
	cin>>s>>s2;
	
	if(s == "Sat" && s2 == "Sun" || s2 == "Sat" && s == "Sun") {
		cout<<"8/33"<<endl;
	} else if((s == "Sat" && s2 != "Sat") || (s == "Sun" && s2 != "Sun")){
		cout<<"8/32"<<endl;
	} else {
		cout<<"8/31"<<endl;
	}
	
	
	return 0;
}