#include <bits/stdc++.h>

using namespace std;

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

	string s1, s2;

	cin >> s1 >> s2;

	if ((s1 == "Sat" && s2 == "Sun") || (s1 == "Sun" && s2 == "Sat") || (s1=="Sat" && s2=="Sat") || (s1=="Sun" && s2=="Sun"))
	{
		cout << "8/33" << '\n';
	}
	else if ((s1 == "Sat" || s1 == "Sun"))
	{
		cout << "8/32" << '\n';
	}
	else
	{
		cout << "8/31" << '\n';
	}
	return 0;
}