using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
namespace bruteforcer
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Go!");
            int counter = 0;
            var done = false;
            String ans = "a";
            done = false;
            while(!done){
            ans = volgendemogelijkheid(ans);
            Regex reg = new Regex("^.{5}");
            bool exec_ = reg.IsMatch(ans);
            if (exec_)
            {
                reg = new Regex("^[^e-z0-9A-Z]+[^A-Z]{4}{?[a-z]*_?");
                exec_ = reg.IsMatch(ans);
                if (exec_)
                {
                    reg = new Regex("^[A9FbdHh5]+[T]*.{2}_?[a-z]+");
                    exec_ = reg.IsMatch(ans);
                    if (exec_)
                    {
                        reg = new Regex("^[^YdSeu][r]+.+=?_?[aeiou]+[^pstuvwxyz]+");
                        exec_ = reg.IsMatch(ans);
                        if (exec_)
                        {
                            reg = new Regex("^(c|a|b|d)+[^A-Za-df-qs-z]{2}{?[^vCXBhq]*[^pqrst]*[a]+[^passwd]*}?");
                            exec_ = reg.IsMatch(ans);
                            if (exec_)
                            {
                                    reg = new Regex("^.*[k0pst]$");
                                    exec_ = reg.IsMatch(ans);
                                    if (exec_)
                                    {
                                        reg = new Regex("^[^0-9A-Z]{5}$");
                                        exec_ = reg.IsMatch(ans);
                                        if (exec_)
                                        {
                                            /*var url = exec_[0];
                                            if (url == ans) {*/
                                                done = true;
                                            //}
                                        }
                                    }
                                }
                            }
                        }
                    }
                }

            if (counter == 1000000)
            {
                counter = 0;
                Console.WriteLine(ans);
            }
            counter++;
            }
            Console.WriteLine("Result= " + ans);
        }




        private static String volgendemogelijkheid(String password)
        {
            String output = password;
            int i = output.Length-1;

            if (output[i] == ((char)122))
            {
                while (i >= 0)
                {
                    if (output[i] == ((char)122))
                    {
                        char[] tmpBuffer = output.ToCharArray();
                        tmpBuffer[i] = ((char)48);
                        output = new String(tmpBuffer);

                        if (i == 0)
                        {
                            output = ((char)48) + output;
                        }
                    }
                    else
                    {
                        int newletternumform = ((char)output[i]) + 1;
                        if (newletternumform == 58)
                            newletternumform = 65;//skipper
                        if (newletternumform == 91)
                            newletternumform = 97;
                        Char newletter = ((char)newletternumform);
                        char[] tmpBuffer = output.ToCharArray();
                        tmpBuffer[i] = (newletter);
                        output = new String(tmpBuffer);
                        break;
                    }
                    i--;

                }
            }
            else
            {
                int newletternumform = ((char)output[i]) + 1;
                Char newletter = ((char)newletternumform);
                char[] tmpBuffer = output.ToCharArray();
                tmpBuffer[i] = (newletter);
                output = new String(tmpBuffer);

            }

            return output;
        }


        void replaceCharWithChar(ref String text, int index, char charToUse)
        {
            char[] tmpBuffer = text.ToCharArray();
            tmpBuffer[index] = charToUse;
            text = new String(tmpBuffer);
        }


    }
}