using System;
using System.Text.RegularExpressions;

class Program
{
    public void Solve()
    {
        decimal n = decimal.Parse(Console.ReadLine());
        Console.WriteLine(n == 1 ? "square1001" : "Petr");
    }

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