using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Numerics;
using System.Text;


class Program
{
    public static string Decrypt(List<int> encrypted, string pass)
    {
        //assume pass.Length == 3
        int currentPos = 0;

        List<int> decrypted = new List<int>();

        foreach (int n in encrypted)
        {
            decrypted.Add(n ^ (int)pass[currentPos]);

            currentPos++;
            if (currentPos == 3)
            {
                currentPos = 2;
            }
        }

        string s = "";
        foreach (int n in decrypted)
        {
            s += (char)n;
        }

        return s;
    }

    [STAThread()]
    public static void Main(string[] args)
    {
        string path = @"C:\Users\owner\Documents\Quick Access\cipher1.txt";
        string data = "";
        using (StreamReader sr = new StreamReader(path))
        {
            data = sr.ReadToEnd();
        }

        List<int> encryptedNums = new List<int>();

        foreach (string s in data.Split(','))
        {
            encryptedNums.Add(Convert.ToInt32(s));
        }

        string encryptedString = "";

        //WTF????
        foreach (int n in encryptedNums)
        {
            try
            {
                encryptedString += (char)n;
            }
            catch (Exception)
            {
                Console.WriteLine(n);
                Console.ReadKey();
            }
        }

        string newPath = @"C:\Users\owner\Documents\Quick Access\cipher2.txt";

        for (char x = 'a'; x <= 'z'; x++)
        {
            for (char y = 'a'; y <= 'z'; y++)
            {
                for (char z = 'a'; z <= 'z'; z++)
                {
                    string pass = x + "" + y + "" + z;
                    string decrypted = Decrypt(encryptedNums, pass);

                    Console.WriteLine("----PASS----");
                    Console.WriteLine(pass);
                    Console.WriteLine();
                    Console.WriteLine();
                    Console.WriteLine("-----DECRYPTED-----");
                    Console.WriteLine(decrypted);
                    Console.WriteLine();
                    Console.WriteLine();
                    Console.WriteLine("-----ENCRYPTED----");
                    Console.WriteLine(encryptedString);
                    Console.ReadKey();

                    using (System.IO.StreamWriter file = new StreamWriter(newPath, true))
                    {
                        file.WriteLine("Decrypted with pass: " + pass + ":\n" + decrypted + "\n\n");
                    }
                }
            }
        }
    }
}