using System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
 
public class Program
{
 
	public Program()
	{
		List<Task<String>> tasks = new List<Task<String>>();
		tasks.Add(this.getNameAsync());
		tasks.Add(this.getSurenameAsync());
		tasks.Add(this.getAgeAsync());
 
 
		 try {
         	Task.WaitAll(tasks.ToArray());
         } catch (AggregateException) {}
 
		for (var ctr = 0 ; ctr < tasks.Count; ctr++) {
            if (tasks[ctr].Status == TaskStatus.Faulted)
               Console.WriteLine("{0} does not exist", tasks[ctr]);
            else
               Console.WriteLine("{0} in '{1}'", tasks[ctr].Result, tasks[ctr]);
         }
 
		//var name = this.getNameAsync();
		//name.Wait();
		//Console.WriteLine(name.Result);
	}
 
	public async Task<string> getNameAsync()
	{
		Thread.Sleep(1000);
		return "The name";
	}
 
	public async Task<string> getSurenameAsync()
	{
		Thread.Sleep(2000);
		return "The surename";
	}
 
	public async Task<string> getAgeAsync()
	{
		return await this.getRealAgeAsync();
	}
 
	public async Task<string> getRealAgeAsync()
	{
		Thread.Sleep(3000);
		return "The age";
	}
 
	public static void Main()
	{
		new Program();
		Console.WriteLine("Hello World");
	}
}