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

namespace _04.Sieve_of_Eratosthenes
{
    class SieveOfEratosthenes
    {
        static void Main(string[] args)
        {
            int num = int.Parse(Console.ReadLine());
            bool[] primes = new bool[num + 1];

            for (int i = 0; i < primes.Length; i++)
            {
                primes[i] = true;
            }

            primes[0] = primes[1] = false;

            for (int i = 2; i < num; i++)
            {
                if (primes[i])
                {
                    FillPrimes(primes, i);
                }
            }

            for (int i = 2; i < primes.Length; i++)
            {
                if (primes[i])
                {
                    Console.Write(i + " ");
                }
            }
            Console.WriteLine();

        }

        private static void FillPrimes(bool[] primes, int step)
        {
            for (int i = step* 2; i < primes.Length; i += step)
            {
                primes[i] = false;
            }
        }
    }
}