#include<iostream>
#include<algorithm>
#include <vector>
using namespace std;
int main() {
	string A, B;
	cin >> A >> B;
	if (A == "Sat" || A == "Sun") {
		if (B == "Sat" || B == "Sun") {
			cout << "8/33" << endl;
		}
		else {
			cout << "8/32" << endl;
		}
	}
	else {
		cout << "3/31" << endl;
	}
}