using System;
using System.Linq;

class No441
{
    static void Main()
    {
        var num = Console.ReadLine().Split(' ');
        var ans = 'P';
        var a = -1; var b = -1;
        if (num[0].Length < 2) a = Int32.Parse(num[0]);
        if (num[1].Length < 2) b = Int32.Parse(num[1]);
        if (a != -1 || b != -1)
        {
            if ((a == 0 && b == 0) || (a == 2 && b == 2)) ans = 'E';
            else if ((a == 0 || b == 0) || (a == 1 || b == 1)) ans = 'S';
        }
        Console.WriteLine(ans);
    }
}