using System;
using System.Linq;
using System.Collections.Generic;

class Program {
    static void Main() {
        string ans;
        string line = Console.ReadLine();
        if (line == "0 0" || line == "2 2") ans = "E";
        else {
            List<string> ab = line.Split().ToList();
            if (ab.Contains("0") || ab.Contains("1")) ans = "S";
            else ans = "P";
        }
        Console.WriteLine(ans);
    }
}