diff --git a/karamushko_maxim_lab_4/Consumer1.py b/karamushko_maxim_lab_4/Consumer1.py
new file mode 100644
index 0000000..5383d18
--- /dev/null
+++ b/karamushko_maxim_lab_4/Consumer1.py
@@ -0,0 +1,25 @@
+import random
+import time
+import pika
+
+queue_name = 'first-client-queue'
+exchange = 'logs'
+
+
+def callback(ch, method, properties, body):
+    print(f" Consumer_1: было получено сообщение {body.decode()}")
+    time.sleep(random.choice([2, 3]))
+    print(f" Consumer_1: было обработано сообщение")
+    ch.basic_ack(delivery_tag=method.delivery_tag)
+
+
+if __name__ == '__main__':
+    connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
+    channel = connection.channel()
+    try:
+        channel.queue_declare(queue=queue_name) #queue
+        channel.queue_bind(exchange=exchange, queue=queue_name) #binding
+        channel.basic_consume(queue=queue_name, on_message_callback=callback)
+        channel.start_consuming()
+    except KeyboardInterrupt:
+        connection.close()
\ No newline at end of file
diff --git a/karamushko_maxim_lab_4/Consumer2.py b/karamushko_maxim_lab_4/Consumer2.py
new file mode 100644
index 0000000..3a90d7c
--- /dev/null
+++ b/karamushko_maxim_lab_4/Consumer2.py
@@ -0,0 +1,22 @@
+import pika
+
+queue_name = 'second-client-queue'
+exchange = 'logs'
+
+
+def callback(ch, method, properties, body):
+    print(f" Consumer_2: было получено сообщение {body.decode()}")
+    print(f" Consumer_2: было обработано сообщение")
+    ch.basic_ack(delivery_tag=method.delivery_tag)
+
+
+if __name__ == '__main__':
+    connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
+    channel = connection.channel()
+    try:
+        channel.queue_declare(queue=queue_name) #queue
+        channel.queue_bind(exchange=exchange, queue=queue_name) #binding
+        channel.basic_consume(queue=queue_name, on_message_callback=callback)
+        channel.start_consuming()
+    except KeyboardInterrupt:
+        connection.close()
\ No newline at end of file
diff --git a/karamushko_maxim_lab_4/Publisher.py b/karamushko_maxim_lab_4/Publisher.py
new file mode 100644
index 0000000..53c30d7
--- /dev/null
+++ b/karamushko_maxim_lab_4/Publisher.py
@@ -0,0 +1,22 @@
+import random
+import time
+import pika
+
+if __name__ == '__main__':
+    connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
+    channel = connection.channel()
+    channel.exchange_declare(exchange='logs', exchange_type='fanout')
+
+    try:
+        while True:
+            message = random.choice([
+                "Пришел клиент",
+                "Ушел клиент",
+                "Клиент недоволен",
+                "Вы разбудили клиента"
+            ])
+
+            channel.basic_publish(exchange='logs', routing_key='', body=message)
+            time.sleep(1)
+    except KeyboardInterrupt:
+        connection.close()
\ No newline at end of file
diff --git a/karamushko_maxim_lab_4/README.md b/karamushko_maxim_lab_4/README.md
new file mode 100644
index 0000000..8229990
--- /dev/null
+++ b/karamushko_maxim_lab_4/README.md
@@ -0,0 +1,46 @@
+# Лабораторная работа №4 - Работа с брокером сообщений
+## ПИбд-42 || Карамушко Максим
+
+### Цель лабораторной работы 
+Изучение передачи сообщений между сервисами с помощью брокера RabbitMQ
+
+### Описание задач 1-2:
+В данной лабораторной был установлен RabbitMQ. После этого было пройдено 3 первых урока из RabbitMQ tutorials.
+
+- Итоги первого урока:
+![Урок 1](./results/lesson1.png)
+
+- Итоги второго урока:
+![Урок 2](./results/lesson2.png)
+
+- Итоги третьего урока:
+![Урок 3](./results/lesson3.png)
+
+### Предметная область:
+В качестве предметной области я выбрал магазин, в который приходят клиенты.
+
+### Описание задачи 3:
+Для демонстрации было были разработаны следующие сервисы: 
+    Publisher: генерирующий сообщения
+    Consumer1: обрабатывающий сообщения с задержкой
+    Consumer2: обрабатывающий сообщения без задержки
+
+- Данные по очереди second-client-queue, с одним запущенным экземпляром Consumer2:
+![изображение 1](./results/second_queue.png)
+
+- Данные по очереди first-client-queue, с одним запущенным экземпляром Consumer1:
+![изображение 2](./results/1-consumers.png)
+
+- Данные по очереди first-client-queue, с двумя запущенными экземплярами Consumer1:
+![изображение 3](./results/2-consumers.png)
+
+- Данные по очереди first-client-queue, с тремя запущенными экземплярами Consumer1:
+![изображение 4](./results/3-consumers.png)
+
+### Выводы:
+По этим данным можно заметить, что вторая очередь вообще не заполняется, так как обрабатывает сообщения мгновенно.
+
+Первая очередь с одним запущенным экземпляром Consumer1, заполняется быстро. По мере увеличения количества запускаемых экземпляров Consumer1 очередь заполняется все медленнее и при трех запущенных экземплярах очередь перестает расти.
+
+### Видео с демонстрацией работы:
+https://disk.yandex.ru/i/EEYPmrVKAczQlg
\ No newline at end of file
diff --git a/karamushko_maxim_lab_4/lesson1/recieve.py b/karamushko_maxim_lab_4/lesson1/recieve.py
new file mode 100644
index 0000000..f118e0a
--- /dev/null
+++ b/karamushko_maxim_lab_4/lesson1/recieve.py
@@ -0,0 +1,25 @@
+import pika, sys, os
+
+def main():
+    connection = pika.BlockingConnection(pika.ConnectionParameters(host='localhost'))
+    channel = connection.channel()
+
+    channel.queue_declare(queue='hello')
+
+    def callback(ch, method, properties, body):
+        print(f" [x] Received {body}")
+
+    channel.basic_consume(queue='hello', on_message_callback=callback, auto_ack=True)
+
+    print(' [*] Waiting for messages. To exit press CTRL+C')
+    channel.start_consuming()
+
+if __name__ == '__main__':
+    try:
+        main()
+    except KeyboardInterrupt:
+        print('Interrupted')
+        try:
+            sys.exit(0)
+        except SystemExit:
+            os._exit(0)
\ No newline at end of file
diff --git a/karamushko_maxim_lab_4/lesson1/send.py b/karamushko_maxim_lab_4/lesson1/send.py
new file mode 100644
index 0000000..41cfff2
--- /dev/null
+++ b/karamushko_maxim_lab_4/lesson1/send.py
@@ -0,0 +1,11 @@
+import pika
+
+connection = pika.BlockingConnection(
+    pika.ConnectionParameters(host='localhost'))
+channel = connection.channel()
+
+channel.queue_declare(queue='hello')
+
+channel.basic_publish(exchange='', routing_key='hello', body='Hello World!')
+print(" [x] Sent 'Hello World!'")
+connection.close()
\ No newline at end of file
diff --git a/karamushko_maxim_lab_4/lesson2/new_task.py b/karamushko_maxim_lab_4/lesson2/new_task.py
new file mode 100644
index 0000000..a2444e0
--- /dev/null
+++ b/karamushko_maxim_lab_4/lesson2/new_task.py
@@ -0,0 +1,19 @@
+import pika
+import sys
+
+connection = pika.BlockingConnection(
+    pika.ConnectionParameters(host='localhost'))
+channel = connection.channel()
+
+channel.queue_declare(queue='task_queue', durable=True)
+
+message = ' '.join(sys.argv[1:]) or "Hello World!"
+channel.basic_publish(
+    exchange='',
+    routing_key='task_queue',
+    body=message,
+    properties=pika.BasicProperties(
+        delivery_mode=pika.DeliveryMode.Persistent
+    ))
+print(f" [x] Sent {message}")
+connection.close()
\ No newline at end of file
diff --git a/karamushko_maxim_lab_4/lesson2/worker.py b/karamushko_maxim_lab_4/lesson2/worker.py
new file mode 100644
index 0000000..8f8ab64
--- /dev/null
+++ b/karamushko_maxim_lab_4/lesson2/worker.py
@@ -0,0 +1,22 @@
+import pika
+import time
+
+connection = pika.BlockingConnection(
+    pika.ConnectionParameters(host='localhost'))
+channel = connection.channel()
+
+channel.queue_declare(queue='task_queue', durable=True)
+print(' [*] Waiting for messages. To exit press CTRL+C')
+
+
+def callback(ch, method, properties, body):
+    print(f" [x] Received {body.decode()}")
+    time.sleep(body.count(b'.'))
+    print(" [x] Done")
+    ch.basic_ack(delivery_tag=method.delivery_tag)
+
+
+channel.basic_qos(prefetch_count=1)
+channel.basic_consume(queue='task_queue', on_message_callback=callback)
+
+channel.start_consuming()
\ No newline at end of file
diff --git a/karamushko_maxim_lab_4/lesson3/emit_log.py b/karamushko_maxim_lab_4/lesson3/emit_log.py
new file mode 100644
index 0000000..45b6989
--- /dev/null
+++ b/karamushko_maxim_lab_4/lesson3/emit_log.py
@@ -0,0 +1,13 @@
+import pika
+import sys
+
+connection = pika.BlockingConnection(
+    pika.ConnectionParameters(host='localhost'))
+channel = connection.channel()
+
+channel.exchange_declare(exchange='logs', exchange_type='fanout')
+
+message = ' '.join(sys.argv[1:]) or "info: Hello World!"
+channel.basic_publish(exchange='logs', routing_key='', body=message)
+print(f" [x] Sent {message}")
+connection.close()
\ No newline at end of file
diff --git a/karamushko_maxim_lab_4/lesson3/receive_logs.py b/karamushko_maxim_lab_4/lesson3/receive_logs.py
new file mode 100644
index 0000000..60d881d
--- /dev/null
+++ b/karamushko_maxim_lab_4/lesson3/receive_logs.py
@@ -0,0 +1,22 @@
+import pika
+
+connection = pika.BlockingConnection(
+    pika.ConnectionParameters(host='localhost'))
+channel = connection.channel()
+
+channel.exchange_declare(exchange='logs', exchange_type='fanout')
+
+result = channel.queue_declare(queue='', exclusive=True)
+queue_name = result.method.queue
+
+channel.queue_bind(exchange='logs', queue=queue_name)
+
+print(' [*] Waiting for logs. To exit press CTRL+C')
+
+def callback(ch, method, properties, body):
+    print(f" [x] {body}")
+
+channel.basic_consume(
+    queue=queue_name, on_message_callback=callback, auto_ack=True)
+
+channel.start_consuming()
\ No newline at end of file
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diff --git a/karamushko_maxim_lab_4/results/lesson1.png b/karamushko_maxim_lab_4/results/lesson1.png
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diff --git a/karamushko_maxim_lab_4/results/second_queue.png b/karamushko_maxim_lab_4/results/second_queue.png
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