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

namespace yukicoderTest
{
    class Program
    {
        static void Main(string[] args)
        {
            string input = Console.ReadLine();
            long total = long.Parse(input);
            bool pflg = true;
            bool sflg = false;
            while(total>=0)
            {
                if (pflg == true)
                {
                    total--;
                    pflg = false;
                    sflg = true;
                    if (total == 1)
                    {
                        Console.WriteLine("square1001");
                    }
                }
                else
                {
                    total--;
                    pflg = true;
                    sflg = false;
                    if (total == 1)
                    {
                        Console.WriteLine("petr");
                    }
                }
            }
        }
    }
}