using System;

class Program
{
    /// <summary>
    /// 選手クラス
    /// </summary>
    static class Players
    {
        public static string Petr = "Petr";
        public static string square1001 = "square1001";
    }

    static void Main(string[] args)
    {
        // 入力
        var permutation = int.Parse(Console.ReadLine());
        string currentPlayer = "";
        string nextPlayer = Players.Petr;
        while (permutation != 0)
        {
            currentPlayer = nextPlayer;
            permutation--;
            nextPlayer = currentPlayer == Players.Petr ? Players.square1001 : Players.Petr;
        }
        var winner = currentPlayer;
        Console.WriteLine(winner);
    }
}