#include "iostream"
using namespace std;

char num[2][100];
int a, b;

int main() {
	cin >> num[0] >> num[1];
	for (int i = 0; i < 100; i++) {
		if (num[0][i] == NULL) {
			a = i;
			break;
		}
	}
	for (int i = 0; i < 100; i++) {
		if (num[1][i] == NULL) {
			b = i;
			break;
		}
	}
	if (a > 1)a = 3;
	else a = num[0][0]-'0';
	if (b > 1)b = 3;
	else b = num[1][0]-'0';
	if ((a == b&&a == 2)||(a==b&&a==0))cout << "E";
	else if (a == 1 || b == 1||a==0||b==0)cout << "S";
	else cout << "P";
	cout << "\n";
	return 0;
}