using System;

public class Program

{

    public static void Main()

    {

        char[] stringToTrim = { '0'};

        string addressNumber = "0001";

        string result = addressNumber.Trim(stringToTrim);

        Console.WriteLine("AddressNumber Iniciando com um zero ou mais\n {0}\n removendo os zeros \n '{1}'", addressNumber, result);

    }

}