using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter Number");

        int n = int.Parse(Console.ReadLine());

        for(int i =1; i<=n;i++){

            int count = 0;

            for(int div =2; div <= i/2; div++){

                if(i % div == 0){

                count++;

                break;

                }

            }

            if(count == 0){

            Console.Write(i +" ");

            }

        }

    }

}