#include <bits/stdc++.h>
using namespace std;
string s, t;
int main() {
	cin >> s >> t;
	if(s == t && (s == "0" || s == "2")) cout << "E" << endl;
	else if(s == "0" || s == "1" || t == "0" || t == "1") cout << "S" << endl;
	else cout << "P" << endl;
	return 0;
}