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

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