using System;

using System.Threading.Tasks;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        WriteIntAsync().Wait();

    }

    public static async Task<int> GetIntAsync()

    {

        return 42;

    }

    public static async Task WriteIntAsync()

    {

        var number = GetIntAsync().Result;

        await Task.Delay(500);

        Console.WriteLine(number);

    }

}