#include "bits/stdc++.h"

using namespace std;

void solve(void)
{
	int a = 31;
	string s1, s2;
	cin >> s1 >> s2;
	if (s1[0] == 'S' && s2[0] == 'S') a+=2;
	else if (s1[0] == 'S') a++;
	cout << "8/" << a << endl;
}

int main()
{
	solve();
	//cout << "yui(*-v・)yui" << endl;
	return 0;
}