#include <iostream>
using namespace std;

int main()
{
  string A,B;

  cin >> A;
  cin >> B;

  if((A[0] == '0' || B[0] == '0' || A[0] == '1' || B[0] == '1') && !(A[0] == '0' && B[0] == '0' && A.size() == 1 && B.size() == 1) && (A.size() == 1 && B.size() == 1))
    cout << "S" << endl;
  else if ((A.size() == 1 && B.size() == 1) && (A[0] == '2' && B[0] == '2') || (A[0] == '0' && B[0] == '0'))
    cout << "E" << endl;
  else
    cout << "P" << endl;
  return 0;
}