#include <iostream>
#include <string>
using namespace std;
int main(){
	string S1, S2;
	cin >> S1 >> S2;
	if (S1 != "Sat" && S1 != "Sun"){
		cout << "8/31" << endl;
	} else if (S2 != "Sat" && S2 != "Sun"){
		cout << "8/32" << endl;
	} else {
		cout << "8/33" << endl;
	}
}