#include<iostream>
#include<algorithm>
#include<cmath>
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=="0"||b=="0"||a=="1"||b=="1") {
      cout << "S" << endl;
  }
  else {
      cout << "P" << endl;
  }
}