using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        try

        {

            List<Exception> excepcoes = new List<Exception>();

            excepcoes.Add(new ArgumentException("argumento", "argumento invalido"));

            excepcoes.Add(new ArgumentNullException("argumento nulo"));

            excepcoes.Add(new InvalidCastException("operacao invalida"));

            throw new AggregateException(excepcoes);

        }

        catch(AggregateException aEx)

        {

            foreach(var ex in aEx.InnerExceptions)

            {

                Console.WriteLine("{0}: {1}\n", ex.GetType(), ex.Message);

            }

        }

    }

}