using System;
using System.Collections.Generic;
using System.Linq;

public class Test
{
	public static void Main()
	{
		while (true)
            {
                Console.WriteLine("Zadej:");
                int vstup = int.Parse(Console.ReadLine());

                var data = new List<Tuple<int, int>>();
                var cislo = 1;
                var opakIndex = 0;
                while (true)
                {

                    var vysledek = cislo/vstup;
                    var zbytek = cislo%vstup;
                    

                    if (data.Any(o => o.Item1 == cislo))
                    {
                        opakIndex = data.FindIndex(o => o.Item1 == cislo);
                        break;
                    }

                    data.Add(new Tuple<int, int>(cislo, vysledek));

                    if (zbytek == 0)
                    {
                        opakIndex = data.Count;
                        break;
                    }

                    cislo = zbytek*10;

                }

                Console.WriteLine("pred: 0." + data.Skip(1).Take(opakIndex - 1).Select(o => o.Item2).Aggregate("", (cur, nex) => cur + nex));
                Console.WriteLine("per:" + data.Skip(opakIndex).Select(o => o.Item2).Aggregate("", (cur, nex) => cur + nex));
            }
	}
}