using DotNetCafe;

using System;

public class Program

{

    public static void Main()

    {

        Cnpj cnpj = Cnpj.Empty;

​

        try

        {

            cnpj = new Cnpj("00.000.000/0001-91");

        }

        catch (ArgumentException e)

        {

            Console.WriteLine($"Error: {e.Message}");

            Environment.Exit(1);

        }

        catch (FormatException e)

        {

            Console.WriteLine($"Error: {e.Message}");

            Environment.Exit(1);

        }

​

        Console.WriteLine($"CNPJ: {cnpj} (General format)");

        Console.WriteLine($"CNPJ: {cnpj:N} (Numeric format)");

    }

}