diff --git a/lesson_03/header/buffer.hpp b/lesson_03/header/buffer.hpp
index 208bd7b..1705611 100644
--- a/lesson_03/header/buffer.hpp
+++ b/lesson_03/header/buffer.hpp
@@ -22,7 +22,7 @@ public:
     const unsigned short int getSize() const;
     const std::string getString() const;
     void clear();
-    operator void*();
+    operator char*();
 };
 
 }
diff --git a/lesson_03/header/client.hpp b/lesson_03/header/client.hpp
index 08ec0a0..d5e83f0 100644
--- a/lesson_03/header/client.hpp
+++ b/lesson_03/header/client.hpp
@@ -16,7 +16,6 @@ class ClientTCP: public Server // @suppress("Class has a virtual method and non-
 {
 private:
     bool _connect;
-    int _connfd;
 
     void chat();
 public:
diff --git a/lesson_03/main.cpp b/lesson_03/main.cpp
index 04d2d5b..bb9600d 100644
--- a/lesson_03/main.cpp
+++ b/lesson_03/main.cpp
@@ -75,7 +75,7 @@ int main(int argc, char *argv[])
             exit(EXIT_FAILURE);
         }
 
-        std::string host = optionHost.getValues()[0];
+        auto host = optionHost.getValues()[0];
 
         client(port, host);
     }
diff --git a/lesson_03/source/buffer.cpp b/lesson_03/source/buffer.cpp
index 05ebc35..706ab6a 100644
--- a/lesson_03/source/buffer.cpp
+++ b/lesson_03/source/buffer.cpp
@@ -32,9 +32,9 @@ void Buffer::clear()
     bzero(_buffer.get(), _size);
 }
 
-Buffer::operator void*()
+Buffer::operator char*()
 {
-    return _buffer.get();
+    return reinterpret_cast<char*>(_buffer.get());
 }
 
 }
diff --git a/lesson_03/source/client.cpp b/lesson_03/source/client.cpp
index 4c7073e..a70bd52 100644
--- a/lesson_03/source/client.cpp
+++ b/lesson_03/source/client.cpp
@@ -13,7 +13,7 @@
 namespace zh
 {
 
-ClientTCP::ClientTCP(const std::string &address, const unsigned short int port, const unsigned short int sizeBuffer) : Server(port, sizeBuffer), _connect(false), _connfd(-1)
+ClientTCP::ClientTCP(const std::string &address, const unsigned short int port, const unsigned short int sizeBuffer) : Server(port, sizeBuffer), _connect(false)
 {
     _socket = std::make_unique<Socket>(AF_INET, SOCK_STREAM, IPPROTO_IP);
     _address = std::make_unique<Address>(AF_INET, address, port);
@@ -27,7 +27,7 @@ void ClientTCP::connect()
         return;
     }
 
-    if (::connect((*_socket), reinterpret_cast<const sockaddr*>(&(*_address)), (*_address).size()) != 0)
+    if (::connect(*_socket, reinterpret_cast<const sockaddr*>(&(*_address)), (*_address).size()) != 0)
         std::cerr << "Не удаётся подключить клиентский сокет к серверному сокету!" << std::endl;
     else
         _connect = true;
@@ -37,12 +37,20 @@ void ClientTCP::connect()
 
 void ClientTCP::chat()
 {
+	Buffer *bf = &(*_buffer);
     while (_connect)
     {
-        Buffer *bf = &(*_buffer);
         bf->clear();
-        std::cin.getline(reinterpret_cast<char*>(bf->operator void *()), bf->getSize());
-        write(_connfd, *bf, bf->getSize());
+        std::cin.getline(*bf, bf->getSize());
+        write(*_socket, *bf, bf->getSize());
+        bf->clear();
+		if (read(*_socket, *bf, bf->getSize()) > 0)
+		{
+			if (bf->getString() == "exit")
+				break;
+			else
+				std::cout << '\t' << bf->getString() << std::endl;
+		}
     }
     close(*_socket);
 }
diff --git a/lesson_03/source/server.cpp b/lesson_03/source/server.cpp
index 9fd9ac3..56ee3bc 100644
--- a/lesson_03/source/server.cpp
+++ b/lesson_03/source/server.cpp
@@ -26,8 +26,7 @@ void ServerTCP::Hook::execute(std::string buffer, ServerTCP &s)
     }
     else
     {
-        auto pos = buffer.find_first_of(_command);
-        if (pos != std::string::npos && pos == 0)
+        if (buffer == _command)
         {
             _handler(buffer, s);
         }
@@ -54,7 +53,7 @@ void ServerTCP::bind()
         return;
     }
 
-    if (::bind((*_socket), reinterpret_cast<const sockaddr*>(&(*_address)), (*_address).size()) != 0)
+    if (::bind(*_socket, reinterpret_cast<const sockaddr*>(&(*_address)), (*_address).size()) != 0)
         std::cerr << "Не удаётся связать адрес с дескриптором слушающего сокета!" << std::endl;
     else
         _bind = true;
@@ -85,16 +84,22 @@ void ServerTCP::listen()
 
 void ServerTCP::chat()
 {
+	Buffer *bf = &(*_buffer);
     while (_listenLoop)
     {
-        Buffer *bf = &(*_buffer);
         bf->clear();
         int size = read(_connfd, *bf, bf->getSize());
         if (size > 0)
+        {
             std::for_each(_hooks.begin(), _hooks.end(), [&](Hook &hook)
             {
                 hook.execute(bf->getString(), *this);
             });
+            if (!_listenLoop)
+            	write(_connfd, "exit", 4);
+            else
+            	write(_connfd, "OK", 2);
+        }
         else if (size < 0)
             break;
     }