#include <bits/stdc++.h>
#define FOR(i,a,b) for(int i = (a); i < (b); ++i)
#define REP(i,n) FOR(i,0,n)
#define SZ(n) (int)(n).size()
#define ALL(n) (n).begin(), (n).end()
#define MOD % 1000000007
using namespace std;
typedef long long LL;
typedef vector<int> VI;

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