#include <bits/stdc++.h>

using namespace std;

int main(void) {
  string a, b;
  cin >> a >> b;

  string ans = "P";
  if ((a == "0" && b == "0") || (a == "2" && b == "2")) {
    ans = "E";
  } else if (a == "0" || a == "1" || b == "0" || b == "1") {
    ans = "S";
  }
  cout << ans << endl;

  return 0;
}