#include <stdio.h>
#include <algorithm>
#include <vector>
#include <deque>
#include <string>
#include <iostream>
using namespace std;
using ll = long long;

void solve();
int main() {
	solve();
#ifdef DBG
	while (true);
#endif
}

//441
void solve() {
	char A[202], B[202];
	scanf("%s %s", A, B);
	if (A[0] == '0' && A[1] == 0 && B[0] == '0' && B[1] == 0) {
		printf("E\n");
		return;
	}
	if (A[0] == '2' && A[1] == 0 && B[0] == '2' && B[1] == 0) {
		printf("E\n");
		return;
	}
	if (('0' <= A[0] && A[0] <= '1' && A[1] == 0) |
		('0' <= B[0] && B[0] <= '1' && B[1] == 0)) {
		printf("S\n");
		return;
	}
	printf("P\n");
}