IRC wargame solved in C#

irc_first.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Net;
using System.Net.Sockets;

namespace ircCtf
{
    class Program
    {
        static void Main(string[] args)
        {
            string botInServer = "PepeGrillo";
            ClienteIrc ircclient = new ClienteIrc("213.56.152.135",6667,"s0d0maP");

            if(ircclient.SockIrc.Connected == true)
            {
                Console.WriteLine(
                    "\nConectado {0} : {1} : {2}\n", 
                    ircclient.direccion,  
                    ircclient.puerto, 
                    ircclient.username
                );

                ircclient.Command(String.Format("NICK {0}",ircclient.username));
                ircclient.Command(String.Format("USER {0} * * :{0}", ircclient.username));

                for( int i = 0; i<5; i++)
                {
                    ircclient.Recibir();
                }

                ircclient.Command(String.Format("PRIVMSG {0} :!ep1", botInServer));
                ircclient.Recibir();
                Console.Write("{0}",ircclient.recvString);

                string[] segmentos = ircclient.recvString.Split(':');
                string[] segmentos2 = segmentos[2].Split(':');
                string[] tempNum = segmentos2[0].Split('/');

                int num1 = int.Parse(tempNum[0]);
                int num2 = int.Parse(tempNum[1]);
                double result = Math.Sqrt(num1) * num2;

                Console.WriteLine(String.Format("PRIVMSG {0} :!problema1 -rep {1}", botInServer, result.ToString("F").Replace(',', '.')));
                ircclient.Command(String.Format("PRIVMSG {0} :!problema1 -rep {1}", botInServer, result.ToString("F").Replace(',', '.')));
                ircclient.Recibir();
                Console.Write("{0}", ircclient.recvString);

                ircclient.SockIrc.Close();

                Console.Read();
            }

        }
    }

    // clase ClienteIrc
    class ClienteIrc
    {
        public string direccion;
        public Int32 puerto;
        public Socket SockIrc;
        public string username;
        public string recvString;
        public string bot;

        public ClienteIrc(string ip, Int32 puerto, string username)
        {
            // inicializar datos
            this.direccion  = ip;
            this.puerto = puerto;
            this.username = username;

            try
            {
                // inicializar socket
                this.SockIrc = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
                IPEndPoint dire_socket = new IPEndPoint(IPAddress.Parse(this.direccion), this.puerto);

                // realizar conexion
                this.SockIrc.Connect(dire_socket);
            }
            catch
            {
                Console.WriteLine("ERROR de conexion");
            }
        }

        public void Recibir()
        {
            byte[] respuesta = new byte[2000];
            int ret = this.SockIrc.Receive(respuesta);

            this.recvString = Encoding.ASCII.GetString(respuesta,0,ret);
        }

        public void Command(string command)
        {
            command += "\r\n";
            byte[] datasend = Encoding.ASCII.GetBytes(command);
            this.SockIrc.Send(datasend);
        }

        public void Cerrar()
        {
            this.Command("QUIT : IRC Rulez");
            this.recvString = "";
            this.puerto = 0;
            this.username = "";
            this.direccion = "";
            this.SockIrc.Close();
        }
    }
}