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

class Program
{
    public void Solve()
    {
        string[] AB = Console.ReadLine().Split(' ');

        if (AB[0] == AB[1] && (AB[0] == "0" || AB[0] == "2"))
        {
            Console.WriteLine("E");
            return;
        }
        else
        {
            int outA = 0, outB = 0;
            if ((int.TryParse(AB[0], out outA) && outA <= 1) || (int.TryParse(AB[1], out outB) && outB <= 1))
            {
                Console.WriteLine("S");
                return;
            }
            Console.WriteLine("P");
        }
    }

    static void Main()
    {
        var solver = new Program();
        solver.Solve();
    }
}