using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        printnumber();

    }

    public static void printnumber(int n=0){

        if(n==0)

            n=1;

        Console.WriteLine(n.ToString());

        if(n<100)

            printnumber(n+1);

    }

}