#include<iostream>
#include<algorithm>
#include<vector>
#include <string>
#include<math.h>
#include<bitset>
typedef long long int ll;
using namespace std;
string s,t;
bool check(string s){
	if(s=="Sun"||s=="Sat"){
		return true;
	}
	return false;
}
int main(){
	cin >>s>>t;
	if(check(s)&&check(t)){
		cout << "8/33" << endl;
	}
	else if(check(s)){
		cout << "8/32" << endl;
	}
	else{
		cout << "8/31" << endl;
	}
}