diff --git a/tasks/voronkova-es/lab_4/.gitignore b/tasks/voronkova-es/lab_4/.gitignore
new file mode 100644
index 0000000..71ec0d1
--- /dev/null
+++ b/tasks/voronkova-es/lab_4/.gitignore
@@ -0,0 +1,226 @@
+# The following command works for downloading when using Git for Windows:
+# curl -LOf http://gist.githubusercontent.com/kmorcinek/2710267/raw/.gitignore
+#
+# Download this file using PowerShell v3 under Windows with the following comand:
+# Invoke-WebRequest https://gist.githubusercontent.com/kmorcinek/2710267/raw/ -OutFile .gitignore
+#
+# or wget:
+# wget --no-check-certificate http://gist.githubusercontent.com/kmorcinek/2710267/raw/.gitignore
+
+# User-specific files
+*.suo
+*.user
+*.sln.docstates
+
+# Build results
+[Dd]ebug/
+[Rr]elease/
+x64/
+[Bb]in/
+[Oo]bj/
+# build folder is nowadays used for build scripts and should not be ignored
+#build/
+
+# NuGet Packages
+*.nupkg
+# The packages folder can be ignored because of Package Restore
+**/packages/*
+# except build/, which is used as an MSBuild target.
+!**/packages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/packages/repositories.config
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+*_i.c
+*_p.c
+*.ilk
+*.meta
+*.obj
+*.pch
+*.pdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.scc
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opensdf
+*.sdf
+*.cachefile
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# NCrunch
+*.ncrunch*
+.*crunch*.local.xml
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.Publish.xml
+
+# Windows Azure Build Output
+csx
+*.build.csdef
+
+# Windows Store app package directory
+AppPackages/
+
+# Others
+*.Cache
+ClientBin/
+[Ss]tyle[Cc]op.*
+~$*
+*~
+*.dbmdl
+*.[Pp]ublish.xml
+*.pfx
+*.publishsettings
+modulesbin/
+tempbin/
+
+# EPiServer Site file (VPP)
+AppData/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file to a newer
+# Visual Studio version. Backup files are not needed, because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+
+# vim
+*.txt~
+*.swp
+*.swo
+
+# Temp files when opening LibreOffice on ubuntu
+.~lock.*
+
+# svn
+.svn
+
+# CVS - Source Control
+**/CVS/
+
+# Remainings from resolving conflicts in Source Control
+*.orig
+
+# SQL Server files
+**/App_Data/*.mdf
+**/App_Data/*.ldf
+**/App_Data/*.sdf
+
+
+#LightSwitch generated files
+GeneratedArtifacts/
+_Pvt_Extensions/
+ModelManifest.xml
+
+# =========================
+# Windows detritus
+# =========================
+
+# Windows image file caches
+Thumbs.db
+ehthumbs.db
+
+# Folder config file
+Desktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# OS generated files #
+Icon?
+
+# Mac desktop service store files
+.DS_Store
+
+# SASS Compiler cache
+.sass-cache
+
+# Visual Studio 2014 CTP
+**/*.sln.ide
+
+# Visual Studio temp something
+.vs/
+
+# dotnet stuff
+project.lock.json
+
+# VS 2015+
+*.vc.vc.opendb
+*.vc.db
+
+# Rider
+.idea/
+
+# Visual Studio Code
+.vscode/
+
+# Output folder used by Webpack or other FE stuff
+**/node_modules/*
+**/wwwroot/*
+
+# SpecFlow specific
+*.feature.cs
+*.feature.xlsx.*
+*.Specs_*.html
+
+# UWP Projects
+AppPackages/
+
+#####
+# End of core ignore list, below put you custom 'per project' settings (patterns or path)
+#####
\ No newline at end of file
diff --git a/tasks/voronkova-es/lab_4/README.md b/tasks/voronkova-es/lab_4/README.md
new file mode 100644
index 0000000..85be654
--- /dev/null
+++ b/tasks/voronkova-es/lab_4/README.md
@@ -0,0 +1,65 @@
+# Отчет по лабораторной работе №4
+
+Выполнила студентка гр. ИСЭбд-41 Воронкова Е.С.
+
+## Прохождение tutorial
+
+Установила RabbitMQ server и erlang
+
+Прохождение туториала 1:
+
+Сначала был запущен receiver, который становится в ожидании сообщения. Затем запустили с отдельном терминале sender, который отправил сообщение
+
+![](images/screen_1.png)
+
+![](images/screen_2.png)
+
+Прохождение туториала 2:
+
+Открыли три терминала: в первых двух запустили поочередно receiver. В третьем терминале запустили sender и отправили пять сообщений.
+![](images/screen_3.png)
+
+В результате эти сообщения были распределены между двумя receiver.
+
+![](images/screen_4.png)
+
+![](images/screen_5.png)
+
+Прохождение туториала 3:
+
+Сначала в первом терминале запустили receiver, затем во втором запустили sender, и отправили сообщение
+
+![](images/screen_1.png)
+
+![](images/screen_2.png)
+
+## Разработка демонстрационных приложений
+
+Предметная область:медицина
+Запустили приложения по одному экземпляру:
+
+1. Sender
+
+![](images/screen_6.png)
+
+2. Receiver_Slow.
+
+![](images/screen_8.png)
+
+3. Receiver.
+
+![](images/screen_7.png)
+
+## Результаты выполнения лабораторной работы
+
+Результат отработки Receiver_Slow:
+
+![](images/screen_11.png)
+![](images/screen_12.png)
+
+Результат отработки Receiver:
+
+![](images/screen_9.png)
+![](images/screen_10.png)
+
+Вывод: Receiver принимает сообщения гораздо быстрее, чем Receiver_Slow тем самым не позволяя очереди накапливать огромное количество сообщений.
\ No newline at end of file
diff --git a/tasks/voronkova-es/lab_4/Receiver/Receiver.sln b/tasks/voronkova-es/lab_4/Receiver/Receiver.sln
new file mode 100644
index 0000000..19bcfff
--- /dev/null
+++ b/tasks/voronkova-es/lab_4/Receiver/Receiver.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.6.33723.286
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Receiver", "Receiver\Receiver.csproj", "{1CB8C246-779F-4FB5-B1A3-E8375FCE14C3}"
+EndProject
+Global
+ GlobalSection(SolutionConfigurationPlatforms) = preSolution
+ Debug|Any CPU = Debug|Any CPU
+ Release|Any CPU = Release|Any CPU
+ EndGlobalSection
+ GlobalSection(ProjectConfigurationPlatforms) = postSolution
+ {1CB8C246-779F-4FB5-B1A3-E8375FCE14C3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {1CB8C246-779F-4FB5-B1A3-E8375FCE14C3}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {1CB8C246-779F-4FB5-B1A3-E8375FCE14C3}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {1CB8C246-779F-4FB5-B1A3-E8375FCE14C3}.Release|Any CPU.Build.0 = Release|Any CPU
+ EndGlobalSection
+ GlobalSection(SolutionProperties) = preSolution
+ HideSolutionNode = FALSE
+ EndGlobalSection
+ GlobalSection(ExtensibilityGlobals) = postSolution
+ SolutionGuid = {797586D4-0A6E-43B6-8857-C0B392679690}
+ EndGlobalSection
+EndGlobal
diff --git a/tasks/voronkova-es/lab_4/Receiver/Receiver/Program.cs b/tasks/voronkova-es/lab_4/Receiver/Receiver/Program.cs
new file mode 100644
index 0000000..79806d3
--- /dev/null
+++ b/tasks/voronkova-es/lab_4/Receiver/Receiver/Program.cs
@@ -0,0 +1,25 @@
+using RabbitMQ.Client;
+using RabbitMQ.Client.Events;
+using System.Text;
+
+var factory = new ConnectionFactory() { HostName = "localhost:7003" };
+using (var connection = factory.CreateConnection())
+using (var channel = connection.CreateModel())
+{
+ channel.QueueDeclare(queue: "",
+ durable: false,
+ exclusive: false,
+ autoDelete: false,
+ arguments: null);
+
+ var consumer = new EventingBasicConsumer(channel);
+ consumer.Received += (model, ea) =>
+ {
+ var body = ea.Body.ToArray();
+ var message = Encoding.UTF8.GetString(body);
+ Console.WriteLine("Received {0}", message);
+ };
+ channel.BasicConsume(queue: "",
+ autoAck: true,
+ consumer: consumer);
+}
\ No newline at end of file
diff --git a/tasks/voronkova-es/lab_4/Receiver/Receiver/Receiver.csproj b/tasks/voronkova-es/lab_4/Receiver/Receiver/Receiver.csproj
new file mode 100644
index 0000000..a60ec9b
--- /dev/null
+++ b/tasks/voronkova-es/lab_4/Receiver/Receiver/Receiver.csproj
@@ -0,0 +1,14 @@
+
+
+
+ Exe
+ net7.0
+ enable
+ enable
+
+
+
+
+
+
+
diff --git a/tasks/voronkova-es/lab_4/Receiver_Slow/Receiver_Slow.sln b/tasks/voronkova-es/lab_4/Receiver_Slow/Receiver_Slow.sln
new file mode 100644
index 0000000..0e0b4ec
--- /dev/null
+++ b/tasks/voronkova-es/lab_4/Receiver_Slow/Receiver_Slow.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.6.33723.286
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Receiver_Slow", "Receiver_Slow\Receiver_Slow.csproj", "{5EB0F390-2D37-46E4-8A8A-8995D08993D9}"
+EndProject
+Global
+ GlobalSection(SolutionConfigurationPlatforms) = preSolution
+ Debug|Any CPU = Debug|Any CPU
+ Release|Any CPU = Release|Any CPU
+ EndGlobalSection
+ GlobalSection(ProjectConfigurationPlatforms) = postSolution
+ {5EB0F390-2D37-46E4-8A8A-8995D08993D9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {5EB0F390-2D37-46E4-8A8A-8995D08993D9}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {5EB0F390-2D37-46E4-8A8A-8995D08993D9}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {5EB0F390-2D37-46E4-8A8A-8995D08993D9}.Release|Any CPU.Build.0 = Release|Any CPU
+ EndGlobalSection
+ GlobalSection(SolutionProperties) = preSolution
+ HideSolutionNode = FALSE
+ EndGlobalSection
+ GlobalSection(ExtensibilityGlobals) = postSolution
+ SolutionGuid = {00246D8F-3496-4A4F-BA3C-25A8EFA739EB}
+ EndGlobalSection
+EndGlobal
diff --git a/tasks/voronkova-es/lab_4/Receiver_Slow/Receiver_Slow/Program.cs b/tasks/voronkova-es/lab_4/Receiver_Slow/Receiver_Slow/Program.cs
new file mode 100644
index 0000000..1286a5e
--- /dev/null
+++ b/tasks/voronkova-es/lab_4/Receiver_Slow/Receiver_Slow/Program.cs
@@ -0,0 +1,26 @@
+using RabbitMQ.Client;
+using RabbitMQ.Client.Events;
+using System.Text;
+
+var factory = new ConnectionFactory() { HostName = "localhost:7003" };
+using (var connection = factory.CreateConnection())
+using (var channel = connection.CreateModel())
+{
+ channel.QueueDeclare(queue: "",
+ durable: false,
+ exclusive: false,
+ autoDelete: false,
+ arguments: null);
+
+ var consumer = new EventingBasicConsumer(channel);
+ consumer.Received += (model, ea) =>
+ {
+ var body = ea.Body.ToArray();
+ var message = Encoding.UTF8.GetString(body);
+ Console.WriteLine("Received {0}", message);
+ Thread.Sleep(2000);
+ };
+ channel.BasicConsume(queue: "",
+ autoAck: true,
+ consumer: consumer);
+}
\ No newline at end of file
diff --git a/tasks/voronkova-es/lab_4/Receiver_Slow/Receiver_Slow/Receiver_Slow.csproj b/tasks/voronkova-es/lab_4/Receiver_Slow/Receiver_Slow/Receiver_Slow.csproj
new file mode 100644
index 0000000..a60ec9b
--- /dev/null
+++ b/tasks/voronkova-es/lab_4/Receiver_Slow/Receiver_Slow/Receiver_Slow.csproj
@@ -0,0 +1,14 @@
+
+
+
+ Exe
+ net7.0
+ enable
+ enable
+
+
+
+
+
+
+
diff --git a/tasks/voronkova-es/lab_4/Sender/Sender.sln b/tasks/voronkova-es/lab_4/Sender/Sender.sln
new file mode 100644
index 0000000..0d2d6f7
--- /dev/null
+++ b/tasks/voronkova-es/lab_4/Sender/Sender.sln
@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.6.33723.286
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Sender", "Sender\Sender.csproj", "{D82034C3-125E-4BEC-90F0-CEFCCCD46E9D}"
+EndProject
+Global
+ GlobalSection(SolutionConfigurationPlatforms) = preSolution
+ Debug|Any CPU = Debug|Any CPU
+ Release|Any CPU = Release|Any CPU
+ EndGlobalSection
+ GlobalSection(ProjectConfigurationPlatforms) = postSolution
+ {D82034C3-125E-4BEC-90F0-CEFCCCD46E9D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {D82034C3-125E-4BEC-90F0-CEFCCCD46E9D}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {D82034C3-125E-4BEC-90F0-CEFCCCD46E9D}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {D82034C3-125E-4BEC-90F0-CEFCCCD46E9D}.Release|Any CPU.Build.0 = Release|Any CPU
+ EndGlobalSection
+ GlobalSection(SolutionProperties) = preSolution
+ HideSolutionNode = FALSE
+ EndGlobalSection
+ GlobalSection(ExtensibilityGlobals) = postSolution
+ SolutionGuid = {23099B07-2AD0-4A20-9671-67D1E50BF17E}
+ EndGlobalSection
+EndGlobal
diff --git a/tasks/voronkova-es/lab_4/Sender/Sender/Program.cs b/tasks/voronkova-es/lab_4/Sender/Sender/Program.cs
new file mode 100644
index 0000000..4d600fd
--- /dev/null
+++ b/tasks/voronkova-es/lab_4/Sender/Sender/Program.cs
@@ -0,0 +1,25 @@
+using RabbitMQ.Client;
+using System.Text;
+
+var factory = new ConnectionFactory() { HostName = "localhost:7003" };
+using (var connection = factory.CreateConnection())
+using (var channel = connection.CreateModel())
+{
+ channel.QueueDeclare(queue: "",
+ durable: false,
+ exclusive: false,
+ autoDelete: false,
+ arguments: null);
+
+ while (true)
+ {
+ Console.WriteLine("Enter your message:");
+ string message = Console.ReadLine();
+
+ var body = Encoding.UTF8.GetBytes(message);
+
+ channel.BasicPublish(exchange: "hello",
+ body: body);
+ Console.WriteLine("Sent {0}", message);
+ }
+}
\ No newline at end of file
diff --git a/tasks/voronkova-es/lab_4/Sender/Sender/Sender.csproj b/tasks/voronkova-es/lab_4/Sender/Sender/Sender.csproj
new file mode 100644
index 0000000..a60ec9b
--- /dev/null
+++ b/tasks/voronkova-es/lab_4/Sender/Sender/Sender.csproj
@@ -0,0 +1,14 @@
+
+
+
+ Exe
+ net7.0
+ enable
+ enable
+
+
+
+
+
+
+
diff --git a/tasks/voronkova-es/lab_4/images/screen_1.png b/tasks/voronkova-es/lab_4/images/screen_1.png
new file mode 100644
index 0000000..fc3c37f
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diff --git a/tasks/voronkova-es/lab_4/images/screen_10.png b/tasks/voronkova-es/lab_4/images/screen_10.png
new file mode 100644
index 0000000..009f6b4
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diff --git a/tasks/voronkova-es/lab_4/images/screen_11.png b/tasks/voronkova-es/lab_4/images/screen_11.png
new file mode 100644
index 0000000..7cc33a8
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diff --git a/tasks/voronkova-es/lab_4/images/screen_12.png b/tasks/voronkova-es/lab_4/images/screen_12.png
new file mode 100644
index 0000000..85ed4ca
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diff --git a/tasks/voronkova-es/lab_4/images/screen_2.png b/tasks/voronkova-es/lab_4/images/screen_2.png
new file mode 100644
index 0000000..0badd0e
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diff --git a/tasks/voronkova-es/lab_4/images/screen_3.png b/tasks/voronkova-es/lab_4/images/screen_3.png
new file mode 100644
index 0000000..6c29ddb
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diff --git a/tasks/voronkova-es/lab_4/images/screen_4.png b/tasks/voronkova-es/lab_4/images/screen_4.png
new file mode 100644
index 0000000..d4a932b
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diff --git a/tasks/voronkova-es/lab_4/images/screen_5.png b/tasks/voronkova-es/lab_4/images/screen_5.png
new file mode 100644
index 0000000..ddeb486
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diff --git a/tasks/voronkova-es/lab_4/images/screen_6.png b/tasks/voronkova-es/lab_4/images/screen_6.png
new file mode 100644
index 0000000..55c6e2d
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diff --git a/tasks/voronkova-es/lab_4/images/screen_7.png b/tasks/voronkova-es/lab_4/images/screen_7.png
new file mode 100644
index 0000000..7f6a602
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diff --git a/tasks/voronkova-es/lab_4/images/screen_8.png b/tasks/voronkova-es/lab_4/images/screen_8.png
new file mode 100644
index 0000000..f021eeb
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diff --git a/tasks/voronkova-es/lab_4/images/screen_9.png b/tasks/voronkova-es/lab_4/images/screen_9.png
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index 0000000..c52104e
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