diff --git a/.config/dotnet-tools.json b/.config/dotnet-tools.json
new file mode 100644
index 0000000..b0e38ab
--- /dev/null
+++ b/.config/dotnet-tools.json
@@ -0,0 +1,5 @@
+{
+  "version": 1,
+  "isRoot": true,
+  "tools": {}
+}
\ No newline at end of file
diff --git a/tasks/ostrovskaya-sf/lab_2/.gitignore b/tasks/ostrovskaya-sf/lab_2/.gitignore
new file mode 100644
index 0000000..8afdcb6
--- /dev/null
+++ b/tasks/ostrovskaya-sf/lab_2/.gitignore
@@ -0,0 +1,454 @@
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+##
+## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore
+
+# User-specific files
+*.rsuser
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Mono auto generated files
+mono_crash.*
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+[Ww][Ii][Nn]32/
+[Aa][Rr][Mm]/
+[Aa][Rr][Mm]64/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+[Ll]ogs/
+
+# Visual Studio 2015/2017 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# Visual Studio 2017 auto generated files
+Generated\ Files/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# NUnit
+*.VisualState.xml
+TestResult.xml
+nunit-*.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# Benchmark Results
+BenchmarkDotNet.Artifacts/
+
+# .NET Core
+project.lock.json
+project.fragment.lock.json
+artifacts/
+
+# Tye
+.tye/
+
+# ASP.NET Scaffolding
+ScaffoldingReadMe.txt
+
+# StyleCop
+StyleCopReport.xml
+
+# Files built by Visual Studio
+*_i.c
+*_p.c
+*_h.h
+*.ilk
+*.meta
+*.obj
+*.iobj
+*.pch
+*.pdb
+*.ipdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*_wpftmp.csproj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+*.VC.VC.opendb
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# Visual Studio Trace Files
+*.e2e
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# AxoCover is a Code Coverage Tool
+.axoCover/*
+!.axoCover/settings.json
+
+# Coverlet is a free, cross platform Code Coverage Tool
+coverage*.json
+coverage*.xml
+coverage*.info
+
+# Visual Studio code coverage results
+*.coverage
+*.coveragexml
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# 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
+*.[Pp]ublish.xml
+*.azurePubxml
+# Note: Comment the next line if you want to checkin your web deploy settings,
+# but database connection strings (with potential passwords) will be unencrypted
+*.pubxml
+*.publishproj
+
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# NuGet Symbol Packages
+*.snupkg
+# The packages folder can be ignored because of Package Restore
+**/[Pp]ackages/*
+# except build/, which is used as an MSBuild target.
+!**/[Pp]ackages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/[Pp]ackages/repositories.config
+# NuGet v3's project.json files produces more ignorable files
+*.nuget.props
+*.nuget.targets
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Windows Store app package directories and files
+AppPackages/
+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
+*.appx
+*.appxbundle
+*.appxupload
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!?*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+orleans.codegen.cs
+
+# Including strong name files can present a security risk
+# (https://github.com/github/gitignore/pull/2483#issue-259490424)
+#*.snk
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# 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
+ServiceFabricBackup/
+*.rptproj.bak
+
+# SQL Server files
+*.mdf
+*.ldf
+*.ndf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+*.rptproj.rsuser
+*- [Bb]ackup.rdl
+*- [Bb]ackup ([0-9]).rdl
+*- [Bb]ackup ([0-9][0-9]).rdl
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+node_modules/
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio 6 auto-generated workspace file (contains which files were open etc.)
+*.vbw
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# CodeRush personal settings
+.cr/personal
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc
+
+# Cake - Uncomment if you are using it
+# tools/**
+# !tools/packages.config
+
+# Tabs Studio
+*.tss
+
+# Telerik's JustMock configuration file
+*.jmconfig
+
+# BizTalk build output
+*.btp.cs
+*.btm.cs
+*.odx.cs
+*.xsd.cs
+
+# OpenCover UI analysis results
+OpenCover/
+
+# Azure Stream Analytics local run output
+ASALocalRun/
+
+# MSBuild Binary and Structured Log
+*.binlog
+
+# NVidia Nsight GPU debugger configuration file
+*.nvuser
+
+# MFractors (Xamarin productivity tool) working folder
+.mfractor/
+
+# Local History for Visual Studio
+.localhistory/
+
+# BeatPulse healthcheck temp database
+healthchecksdb
+
+# Backup folder for Package Reference Convert tool in Visual Studio 2017
+MigrationBackup/
+
+# Ionide (cross platform F# VS Code tools) working folder
+.ionide/
+
+# Fody - auto-generated XML schema
+FodyWeavers.xsd
+
+##
+## Visual studio for Mac
+##
+
+
+# globs
+Makefile.in
+*.userprefs
+*.usertasks
+config.make
+config.status
+aclocal.m4
+install-sh
+autom4te.cache/
+*.tar.gz
+tarballs/
+test-results/
+
+# Mac bundle stuff
+*.dmg
+*.app
+
+# content below from: https://github.com/github/gitignore/blob/master/Global/macOS.gitignore
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+# content below from: https://github.com/github/gitignore/blob/master/Global/Windows.gitignore
+# Windows thumbnail cache files
+Thumbs.db
+ehthumbs.db
+ehthumbs_vista.db
+
+# Dump file
+*.stackdump
+
+# Folder config file
+[Dd]esktop.ini
+
+# Recycle Bin used on file shares
+$RECYCLE.BIN/
+
+# Windows Installer files
+*.cab
+*.msi
+*.msix
+*.msm
+*.msp
+
+# Windows shortcuts
+*.lnk
+
+# JetBrains Rider
+.idea/
+*.sln.iml
+
+##
+## Visual Studio Code
+##
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
diff --git a/tasks/ostrovskaya-sf/lab_2/README.md b/tasks/ostrovskaya-sf/lab_2/README.md
new file mode 100644
index 0000000..23fc80a
--- /dev/null
+++ b/tasks/ostrovskaya-sf/lab_2/README.md
@@ -0,0 +1,67 @@
+# Отчёт по лабораторной работе №2
+
+Выполнила: студентка гр. ИСЭбд-41 Островская Софья.
+
+Вариант программы 1: 
+
+4. Формирует файл `/var/result/data.txt` так, что каждая строка файла - количество символов в именах файлов из каталога `/var/data`.
+
+Вариант программы 2: 
+
+0. Сохраняет произведение первого и последнего числа из файла `/var/data/data.txt` в `/var/result/result.txt`.
+
+## Создание приложений
+
+Создадим 2 приложения.
+Был выбран язык C# и технология .NET 5.
+
+Для создания обычных консольных приложений воспользуемся командами:
+
+```sh
+dotnet new console -o worker-1
+dotnet new console -o worker-2
+```
+
+Согласно варианту, программа 1 должна сформировать файл `/var/result/data.txt`, в который построчно будут записаны числа, равные количеству символов в именах файлах каталога `/var/data`.
+
+[Исходный текст программы worker-1](worker-1/Program.cs)
+
+Согласно варианту, программа 2 должна взять первое и последнее число из файла `/var/data/data.txt`, затем выполнить операцию произведения и записать результат в `/var/result/result.txt`.
+
+[Исходный текст программы worker-2](worker-2/Program.cs)
+
+Дополнительно создан файл [.gitignore](.gitignore) для того, чтобы не закоммитить в git ничего лишнего.
+
+## Настройка окружения
+
+Для связи двух приложений воспользуемся следующей схемой:
+
+1. Каталог `./data` должен быть примонтирован в каталог `/var/data` для программы 1.
+   Оттуда будут браться исходные данные.
+2. Каталог `./result-1` должен быть примонтирован в каталог `/var/result` для программы 2.
+   Туда будут складываться промежуточные данные.
+3. Каталог `./result-1` также должен быть примонтирован в каталог `/var/data` для программы 2.
+   Оттуда будут браться промежуточные результаты.
+4. Каталог `./result` должен быть примонтирован в каталог `/var/result` для программы 2.
+   Туда будут складывать результаты финальной обработки.
+
+Для каждой программы были созданы файлы Dockerfile ([программа 1](worker-1/Dockerfile), [программа 2](worker-2/Dockerfile)) с подробным описанием процесса сборки.
+
+Был создан файл [docker-compose.yml](docker-compose.yml), в котором указан манифест для запуска распределённого приложения.
+
+## Сборка и запуск
+
+В каталог `./data` помещены 3 файла с различной длиной названия.
+
+![](pic1.png)
+
+На выходе, программа должна сначала записать числа [5 8 9], поскольку именно такую длину имеют файлы (вместе с расширением). А затем, умножив 5 на 9, получится результат программы 2, равный 45
+
+Для запуска приложения необходимо ввести команду `docker compose up --build`.
+Результат запуска после сборки:
+
+![](pic2.png)
+
+В результате в каталоге `./result` создался файл `result.txt` с содержимым `45`.
+
+Изменение значений в файлах из каталога `./data` также изменяет содержимое в файлах из каталогов `./result-1` и `./result`.
\ No newline at end of file
diff --git a/tasks/ostrovskaya-sf/lab_2/data/1.txt b/tasks/ostrovskaya-sf/lab_2/data/1.txt
new file mode 100644
index 0000000..e69de29
diff --git a/tasks/ostrovskaya-sf/lab_2/data/data.txt b/tasks/ostrovskaya-sf/lab_2/data/data.txt
new file mode 100644
index 0000000..b178657
--- /dev/null
+++ b/tasks/ostrovskaya-sf/lab_2/data/data.txt
@@ -0,0 +1,4 @@
+1
+2
+3
+4
\ No newline at end of file
diff --git a/tasks/ostrovskaya-sf/lab_2/data/sonya.txt b/tasks/ostrovskaya-sf/lab_2/data/sonya.txt
new file mode 100644
index 0000000..e69de29
diff --git a/tasks/ostrovskaya-sf/lab_2/docker-compose.yml b/tasks/ostrovskaya-sf/lab_2/docker-compose.yml
new file mode 100644
index 0000000..9c753e7
--- /dev/null
+++ b/tasks/ostrovskaya-sf/lab_2/docker-compose.yml
@@ -0,0 +1,18 @@
+version: "3.1"
+services:
+  worker-1:
+    build: ./worker-1
+    volumes:
+      # Монтирует локальную папку data к папке data в контейнере.
+      - ./data:/var/data
+      # Монтирует локальную папку result-1 к папке result в контейнере.
+      - ./result-1:/var/result
+  worker-2:
+    build: ./worker-2
+    volumes:
+      # Монтирует локальную папку result-1 к папке data в контейнере.
+      - ./result-1:/var/data
+      - ./result:/var/result
+    # Зависимость от первого приложения.
+    depends_on:
+      - worker-1
\ No newline at end of file
diff --git a/tasks/ostrovskaya-sf/lab_2/lab_2.sln b/tasks/ostrovskaya-sf/lab_2/lab_2.sln
new file mode 100644
index 0000000..c30048f
--- /dev/null
+++ b/tasks/ostrovskaya-sf/lab_2/lab_2.sln
@@ -0,0 +1,48 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.30114.105
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "worker-1", "worker-1\worker-1.csproj", "{27BD1451-9A65-4578-8694-DDA354866DA3}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "worker-2", "worker-2\worker-2.csproj", "{AD4D5CF8-D33E-45A5-B30E-FB86133562EC}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|Any CPU = Release|Any CPU
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{27BD1451-9A65-4578-8694-DDA354866DA3}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{27BD1451-9A65-4578-8694-DDA354866DA3}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{27BD1451-9A65-4578-8694-DDA354866DA3}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{27BD1451-9A65-4578-8694-DDA354866DA3}.Debug|x64.Build.0 = Debug|Any CPU
+		{27BD1451-9A65-4578-8694-DDA354866DA3}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{27BD1451-9A65-4578-8694-DDA354866DA3}.Debug|x86.Build.0 = Debug|Any CPU
+		{27BD1451-9A65-4578-8694-DDA354866DA3}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{27BD1451-9A65-4578-8694-DDA354866DA3}.Release|Any CPU.Build.0 = Release|Any CPU
+		{27BD1451-9A65-4578-8694-DDA354866DA3}.Release|x64.ActiveCfg = Release|Any CPU
+		{27BD1451-9A65-4578-8694-DDA354866DA3}.Release|x64.Build.0 = Release|Any CPU
+		{27BD1451-9A65-4578-8694-DDA354866DA3}.Release|x86.ActiveCfg = Release|Any CPU
+		{27BD1451-9A65-4578-8694-DDA354866DA3}.Release|x86.Build.0 = Release|Any CPU
+		{AD4D5CF8-D33E-45A5-B30E-FB86133562EC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{AD4D5CF8-D33E-45A5-B30E-FB86133562EC}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{AD4D5CF8-D33E-45A5-B30E-FB86133562EC}.Debug|x64.ActiveCfg = Debug|Any CPU
+		{AD4D5CF8-D33E-45A5-B30E-FB86133562EC}.Debug|x64.Build.0 = Debug|Any CPU
+		{AD4D5CF8-D33E-45A5-B30E-FB86133562EC}.Debug|x86.ActiveCfg = Debug|Any CPU
+		{AD4D5CF8-D33E-45A5-B30E-FB86133562EC}.Debug|x86.Build.0 = Debug|Any CPU
+		{AD4D5CF8-D33E-45A5-B30E-FB86133562EC}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{AD4D5CF8-D33E-45A5-B30E-FB86133562EC}.Release|Any CPU.Build.0 = Release|Any CPU
+		{AD4D5CF8-D33E-45A5-B30E-FB86133562EC}.Release|x64.ActiveCfg = Release|Any CPU
+		{AD4D5CF8-D33E-45A5-B30E-FB86133562EC}.Release|x64.Build.0 = Release|Any CPU
+		{AD4D5CF8-D33E-45A5-B30E-FB86133562EC}.Release|x86.ActiveCfg = Release|Any CPU
+		{AD4D5CF8-D33E-45A5-B30E-FB86133562EC}.Release|x86.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal
diff --git a/tasks/ostrovskaya-sf/lab_2/pic1.png b/tasks/ostrovskaya-sf/lab_2/pic1.png
new file mode 100644
index 0000000..ee226aa
Binary files /dev/null and b/tasks/ostrovskaya-sf/lab_2/pic1.png differ
diff --git a/tasks/ostrovskaya-sf/lab_2/pic2.png b/tasks/ostrovskaya-sf/lab_2/pic2.png
new file mode 100644
index 0000000..d056f79
Binary files /dev/null and b/tasks/ostrovskaya-sf/lab_2/pic2.png differ
diff --git a/tasks/ostrovskaya-sf/lab_2/result-1/data.txt b/tasks/ostrovskaya-sf/lab_2/result-1/data.txt
new file mode 100644
index 0000000..2ff6a39
--- /dev/null
+++ b/tasks/ostrovskaya-sf/lab_2/result-1/data.txt
@@ -0,0 +1,3 @@
+5
+8
+9
diff --git a/tasks/ostrovskaya-sf/lab_2/result/result.txt b/tasks/ostrovskaya-sf/lab_2/result/result.txt
new file mode 100644
index 0000000..ea90ee3
--- /dev/null
+++ b/tasks/ostrovskaya-sf/lab_2/result/result.txt
@@ -0,0 +1 @@
+45
diff --git a/tasks/ostrovskaya-sf/lab_2/worker-1/Dockerfile b/tasks/ostrovskaya-sf/lab_2/worker-1/Dockerfile
new file mode 100644
index 0000000..ce05e25
--- /dev/null
+++ b/tasks/ostrovskaya-sf/lab_2/worker-1/Dockerfile
@@ -0,0 +1,17 @@
+#задаем базовый образ на .net 5.0
+FROM mcr.microsoft.com/dotnet/sdk:5.0 AS build-env 
+#задаем рабочую директорию
+WORKDIR /app
+
+#в каталог копируем файлы и папки в контейнер
+COPY  . /app
+#создаем образы и устанавливаем данные пакеты в контейнер
+RUN dotnet restore
+COPY . .
+RUN dotnet publish -c Release -o /publish
+
+FROM mcr.microsoft.com/dotnet/aspnet:5.0
+WORKDIR /publish
+COPY --from=build-env /publish .
+#вызываем приложение во время выполнения контейнера
+ENTRYPOINT ["dotnet", "worker-1.dll"]
\ No newline at end of file
diff --git a/tasks/ostrovskaya-sf/lab_2/worker-1/Program.cs b/tasks/ostrovskaya-sf/lab_2/worker-1/Program.cs
new file mode 100644
index 0000000..732f173
--- /dev/null
+++ b/tasks/ostrovskaya-sf/lab_2/worker-1/Program.cs
@@ -0,0 +1,34 @@
+using System;
+using System.IO;
+using System.Net.Http;
+
+var dir = new DirectoryInfo("../var/data");
+
+var files = dir.GetFiles();
+
+string resultFilePath = "../var/result/data.txt";
+try
+{
+    int[] mass = new int[files.Length];
+    int i = 0;
+    // Создаем новый файл или перезаписываем существующий
+    using (StreamWriter writer = new StreamWriter(resultFilePath, false))
+    {
+        foreach (var file in files)
+        {
+            // Записываем в файл количество символов в имени каждого файла
+            writer.WriteLine(file.Name.Length);
+            mass[i] = file.Name.Length;
+            i++;
+        }
+    }
+    Console.WriteLine("Файл успешно создан! Результат: ");
+    foreach(var item in mass)
+    {
+        Console.WriteLine(item);
+    }
+}
+catch (Exception ex)
+{
+    Console.WriteLine("Произошла ошибка: " + ex.Message);
+}
\ No newline at end of file
diff --git a/tasks/ostrovskaya-sf/lab_2/worker-1/worker-1.csproj b/tasks/ostrovskaya-sf/lab_2/worker-1/worker-1.csproj
new file mode 100644
index 0000000..328500d
--- /dev/null
+++ b/tasks/ostrovskaya-sf/lab_2/worker-1/worker-1.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net5.0</TargetFramework>
+    <RootNamespace>worker_1</RootNamespace>
+  </PropertyGroup>
+
+</Project>
diff --git a/tasks/ostrovskaya-sf/lab_2/worker-2/Dockerfile b/tasks/ostrovskaya-sf/lab_2/worker-2/Dockerfile
new file mode 100644
index 0000000..49ab49f
--- /dev/null
+++ b/tasks/ostrovskaya-sf/lab_2/worker-2/Dockerfile
@@ -0,0 +1,17 @@
+#задаем базовый образ на .net 5.0
+FROM mcr.microsoft.com/dotnet/sdk:5.0 AS build-env 
+#задаем рабочую директорию
+WORKDIR /app
+
+#в каталог копируем файлы и папки в контейнер
+COPY  . /app
+#создаем образы и устанавливаем данные пакеты в контейнер
+RUN dotnet restore
+COPY . .
+RUN dotnet publish -c Release -o /publish
+
+FROM mcr.microsoft.com/dotnet/aspnet:5.0
+WORKDIR /publish
+COPY --from=build-env /publish .
+#вызываем приложение во время выполнения контейнера
+ENTRYPOINT ["dotnet", "worker-2.dll"]
\ No newline at end of file
diff --git a/tasks/ostrovskaya-sf/lab_2/worker-2/Program.cs b/tasks/ostrovskaya-sf/lab_2/worker-2/Program.cs
new file mode 100644
index 0000000..e11b7c1
--- /dev/null
+++ b/tasks/ostrovskaya-sf/lab_2/worker-2/Program.cs
@@ -0,0 +1,34 @@
+using System;
+using System.IO;
+
+string[] lines = File.ReadAllLines("../var/data/data.txt");
+
+int firstNumber = 0;
+int lastNumber = 0;
+
+foreach (string line in lines)
+{       
+     if (int.TryParse(line, out int number))
+     {
+         firstNumber = number;
+         break;
+     }
+}
+
+for (int i = lines.Length - 1; i >= 0; i--)
+{
+     if (int.TryParse(lines[i], out int number))
+     {
+        lastNumber = number;
+        break;
+     }
+}
+
+int multiplication = firstNumber * lastNumber;
+
+using (StreamWriter writer = new StreamWriter("../var/result/result.txt"))
+{
+    writer.WriteLine(multiplication);
+}
+
+Console.WriteLine("Произведение успешно записано в файл! Результат: " + multiplication);
\ No newline at end of file
diff --git a/tasks/ostrovskaya-sf/lab_2/worker-2/worker-2.csproj b/tasks/ostrovskaya-sf/lab_2/worker-2/worker-2.csproj
new file mode 100644
index 0000000..fb2480c
--- /dev/null
+++ b/tasks/ostrovskaya-sf/lab_2/worker-2/worker-2.csproj
@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net5.0</TargetFramework>
+    <RootNamespace>worker_2</RootNamespace>
+  </PropertyGroup>
+
+</Project>