using System;

using System.Linq;

using System.Collections.Generic;

using System.Threading.Tasks;

public class Program

{

    public static Task<int> TaskOne()

    {

        return Task.FromResult(1);

    }

    public static Task<int> TaskTwo()

    {

        return Task.FromResult(2);

    }

    public static Task<int> TaskThree()

    {

        return Task.FromResult(3);

    }

    public static async Task Main()

    {

        var task1 = TaskOne();

        var task2 = TaskTwo();

        var task3 = TaskThree();

        await Task.WhenAll(new Task[] { task1, task2, task3 });

        Console.WriteLine(task1.Result);

        Console.WriteLine(task2.Result);

        Console.WriteLine(task3.Result);

    }

}