using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

​

​

{

    {

        static void Main(string[] args)

        {

            int[] arr = new int[20];

​

            for (int i = 0; i < arr.Length; i++)

            {

                arr[i] = i * 5;

                Console.WriteLine(arr[i]);

    }

}