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

signed main(){
  string a, b; cin >> a >> b;
  if( not ( a.size() <= b.size() ) )
    swap( a, b );
  if( a.size() > 8 )
    cout << "P" << endl,
    exit( 0 );
  int x; stringstream ss( a ); ss >> x;
  if( x == 2 ){
    int y = 1e9;
    if( b.size() <= 8 ){
      stringstream sss( b ); sss >> y;
    }
    if( y == 2 )
      cout << "E" << endl;
    else
      cout << "P" << endl;
  } else if( x == 1 ){
    cout << "S" << endl;
  } else if( x == 0 ){
    int y = 1e9;
    if( b.size() <= 8 ){
      stringstream sss( b ); sss >> y;
    }
    if( y == 0 )
      cout << "E" << endl;
    else
      cout << "S" << endl;
  } else{
    cout << "P" << endl;
  }
  return 0;
}