using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter to which number you will check the factors of");

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

        for(int i=2;i<=(fact);i++)

        {

            string outp = "";

            for(int i2=1;i2<=i;i2++)

            {

                if(i%i2==0)

                {

                    outp = outp + i2 + ",";     

                }

            }

            outp = outp.Remove(outp.Length-1,1);

            Console.WriteLine(outp + " are the factors of " + i);

        } 

    }

}