using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

class Magatro
{
    static void Main()
    {
        string[] ab = Console.ReadLine().Split(' ');
        Array.Sort(ab);
        if (ab[0] == "0")
        {
            if (ab[1] == "0")
            {
                Console.WriteLine("E");
                return;
            }
            else
            {
                Console.WriteLine("S");
                return;
            }
        }
        if (ab[0] == "1")
        {
            if (ab[1] == "1")
            {
                Console.WriteLine("S");
                return;
            }
            else
            {
                Console.WriteLine("S");
                return;
            }
        }
        if (ab[0] == "2" && ab[1] == "2")
        {
            Console.WriteLine("E");
            return;
        }
        Console.WriteLine("P");
    }

}