using System;

public class Program

{

    public static void Main()

    {

        try

        {

            Catches();

        }

        catch (Exception e)

        {

            Console.WriteLine(e);

        }

    }

    public static void Catches()

    {

        try

        {

            Throws();

        }

        catch (Exception e)

        {

            Console.WriteLine(e);

            throw;

        }

    }

    public static void Throws()

    {

        throw new Exception("BOOM");    

    }

}