RobotCommunication

using System;
using System.Collections.Generic;
using System.Text;
using System.Text.RegularExpressions;

namespace _02.RobotCommunication
{
   public class Program
    {
     public   static void Main(string[] args)
        {
            string line = Console.ReadLine();

            string pattern = @"[,|_]{1}([\d|\w]+)";

            List<string> data = new List<string>();

            Regex regex = new Regex(pattern);



            FindData(line, data);
            NewMethod(data, regex);

            while (true)
            {
                line = Console.ReadLine();

                if (line == "Report")
                {
                    break;
                }

                data.Clear();

                FindData(line, data);

                NewMethod(data, regex);

            }

        }

        private static void NewMethod(List<string> data, Regex regex)
        {
            StringBuilder stringBuilder = new StringBuilder();

            for (int i = 0; i < data.Count; i++)
            {
                stringBuilder.AppendLine(data[i]);

            }

            string something = stringBuilder.ToString();


            var matchColection = regex.Matches(something);

            for (int i = 0; i < matchColection.Count; i++)
            {
                string decoded = string.Empty;
                int sum = 0;

                string stoinost = matchColection[i].Value;

                char digid = stoinost[0];
                for (int j = 0; j < stoinost.Length; j++)
                {
                    int num;

                    bool isNum = int.TryParse(stoinost[j].ToString(), out num);

                    if (isNum)
                    {
                        if (digid == ',')
                        {
                            sum += num;
                        }
                        else if(digid=='_')
                        {
                            sum -= num;
                        }
                    }

                }

                for (int j = 1; j < stoinost.Length; j++)
                {
                    int num;

                    bool isNum = int.TryParse(stoinost[j].ToString(), out num);

                    if (!isNum)
                    {
                        int code = stoinost[j];


                            code += sum;





                        char s = Convert.ToChar(code);

                        decoded += s;



                    }
                    else
                    {
                        break;
                    }

                }

                Console.Write(decoded + " ");

            }
            Console.WriteLine();
        }

        private static void FindData(string line, List<string> data)
        {
            for (int i = 0; i < line.Length; i++)
            {

                if (line[i] == '_' || line[i] == ',')
                {
                    int startIndex = i;
                    int startLine = startIndex + 1;

                    while (true)
                    {
                        if (line[startLine] == '_' || line[startLine] == ',' || startLine + 1 == line.Length)
                        {
                            if (startLine + 1 == line.Length)
                            {
                                data.Add(line.Substring(startIndex));
                            }
                            else
                            {
                                data.Add(line.Substring(startIndex, startLine - startIndex));
                            }
                            break;
                        }
                        startLine++;
                        if (startLine == line.Length)
                        {

                            break;
                        }

                    }

                }

            }
        }
    }
}