#include <bits/stdc++.h>
using namespace std;

int main(void) {
	string a, b;
	cin >> a >> b;
	if (a == "0" && b == "0" || a == "2" && b == "2") {
		cout << "E" << endl;
		return 0;
	} else if (a == "0" || a == "1" || b == "0" || b == "1") {
		cout << "S" << endl;
		return 0;
	} else {
		cout << "P" << endl;
	}
	return 0;
}