using System;

public class Program

{

    public static void Main()

    {

        var list1 = new int[] { 1, 3, 5, 9 };

        var list2 = new int[] { 2, 4, 6, 7, 8 };

        Console.WriteLine("1, 2, 3, 4, 5, 6, 7, 8, 9");

    }

}