#!/usr/bin/env perl

use strict;
use warnings;

my ($x, $y) = split / /, <>; chomp $y;
if ($x == 2 && $y == 2) {
  print "E\n";
} elsif ($x == 0 && $y == 0) {
  print "E\n";
} elsif ($x <= 1 || $y <= 1) {
  print "S\n";
} else {
  print "P\n";
}