#include <iostream>
#include <algorithm>
#include <string>
#include <vector>

using namespace std;
using ll = long long;
#define rep(i,n) for(int i = 0; i < (int)(n); i++)
#define all(c) begin(c), end(c)

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