Regular Expression is urgent

using System;

using System.Text.RegularExpressions;

class Program

{

   static void Main()

   {

       string input = "((G011, (G012 + !(111_HIGH_SECURITY))) + !(ALLRAD) + (((((EBBG_BBG_FAHRZEUG + !(2VR_2_ACHS_LUFTFEDERUNG)) + !(2VS_MASTERPIECE_ARBEITSNAME) + !(2VH_AKTIVLENKUNG_UND_HSR))), ((((!(EBBG_BBG_FAHRZEUG), 2VR_2_ACHS_LUFTFEDERUNG) + !(2VS_MASTERPIECE_ARBEITSNAME) + !(2VH_AKTIVLENKUNG_UND_HSR)))))))";

       string re = @"^\(+(\w+), \((.*?\))\)+(.*? )\(+(.*?\))\)+(.*?\))\)+, \(+(.*?\)), (\w+\))(.*?\))\)+$";

        

       Match m = Regex.Match(input, re);    

       string str1 = m.Groups[1].Value;

       string str2 = m.Groups[2].Value;  

       string str3 = m.Groups[3].Value;

       string str4 = m.Groups[4].Value; 

       string str5 = m.Groups[5].Value;

       string str6 = m.Groups[6].Value;  

       string str7 = "(" + m.Groups[7].Value; 

       string str8 = m.Groups[8].Value; 

       string[] stra1 = {str1, str2};

       string[] stra2 = {str4 + str5, str6 + str8, str7 + str8};       

       foreach(string s1 in stra1)

       {

           foreach(string s2 in stra2)

           {

              Console.WriteLine("{0}{1}{2}\n", s1, str3, s2); 

           }

       }

       Console.ReadKey();

   }

}