HTS Realistic 6

using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace ConsoleApplication4
{
    class Program
    {
        static void Main(string[] args)
        {
            //Get The Encrypted Text And Split them at (.) To Any Array
            StreamReader sr = new StreamReader("raw.txt");
            string raw = sr.ReadToEnd().Replace("\n","").Replace("\r","");
            sr.Close();
            string[] raw2 = raw.Split('.');
            //Now I Just Assumed that the maximum key sum is 1300 so I'll loop from 32 to 1300
            for (int i = 32; i < 1300; i++)
            {
                string msg = "";
                int countindexes = 1;
                int firstindex = 1;
                //Here I'll Start Sum Every 3 Elements in the array to get the sum and Substract them from the suggested key value which is (i) value
                for (int j = 1; j < raw2.Length; j++)
                {
                    int charsum = 0;
                    if (countindexes==3)
                    {
                        for (int k = firstindex; k <= j; k++)
                        {
                            charsum += int.Parse(raw2[k]);
                        }
                        if ((charsum-i) > 127) //Check if the sum has a real character in the ascii table
                            break;
                        firstindex = j+1;
                        msg += (char)(charsum-i);
                        countindexes = 0;
                    }
                    countindexes++;
                }
                //Now We'll Check if the Decrypted Text has the word Samuel Or Not , If it doesn't so the key we suggested isn't true and we'll try again.
                if (msg.Contains("Samuel"))
                {
                    StreamWriter sw = new StreamWriter("finalmsg.txt");
                    sw.WriteLine(msg);
                    sw.Close();
                    break;
                }

            }

        }
    }
}