using System;

using System.Threading;

using System.Threading.Tasks;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        willwait();

        Thread.Sleep(10);

    }

    public static async void willwait() {

        await dosomething();

    }

    public static async Task dosomething() {

        Console.WriteLine("hello");

    }

}