diff --git a/.gitignore b/.gitignore
index d0ad06f..d892a65 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
-Лаба1
-Лаба2
-Лаба3
+Лаба1/
+Лаба2/
+Лаба3/
+Лаба456/
 
 # ---> MicrosoftOffice
 *.tmp
diff --git a/Лаба456/lab4 b/Лаба456/lab4
deleted file mode 160000
index f2d8f5c..0000000
--- a/Лаба456/lab4
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit f2d8f5c05ecf7ea69fb81da641368a174a010fd7
diff --git a/Лаба456/lab5 b/Лаба456/lab5
deleted file mode 160000
index adacfe2..0000000
--- a/Лаба456/lab5
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit adacfe2ac9163460d10ac8e2236f92a69e885cac
diff --git a/Лаба456/lab6 b/Лаба456/lab6
deleted file mode 160000
index 27ed2e6..0000000
--- a/Лаба456/lab6
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 27ed2e6823144a0800f13a77283e56fb92d01abb
diff --git a/ОИТ Практическая 1.docx b/Практическая 1/ОИТ Практическая 1.docx
similarity index 100%
rename from ОИТ Практическая 1.docx
rename to Практическая 1/ОИТ Практическая 1.docx
diff --git a/ОИТ. Лекция 01.pptx b/Практическая 1/ОИТ. Лекция 01.pptx
similarity index 100%
rename from ОИТ. Лекция 01.pptx
rename to Практическая 1/ОИТ. Лекция 01.pptx
diff --git a/Практическая работа 1. Количественный и качественный анализ информации.doc b/Практическая 1/Практическая работа 1. Количественный и качественный анализ информации.doc
similarity index 100%
rename from Практическая работа 1. Количественный и качественный анализ информации.doc
rename to Практическая 1/Практическая работа 1. Количественный и качественный анализ информации.doc
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index 0000000..d03322d
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new file mode 100644
index 0000000..5111a78
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+++ b/Практическая 2/conversions/conversions.sln	
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+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{D7D3694E-189B-4AA9-AE3C-CEC7985C856B}.Debug|x64.ActiveCfg = Debug|x64
+		{D7D3694E-189B-4AA9-AE3C-CEC7985C856B}.Debug|x64.Build.0 = Debug|x64
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+		{D7D3694E-189B-4AA9-AE3C-CEC7985C856B}.Debug|x86.Build.0 = Debug|Win32
+		{D7D3694E-189B-4AA9-AE3C-CEC7985C856B}.Release|x64.ActiveCfg = Release|x64
+		{D7D3694E-189B-4AA9-AE3C-CEC7985C856B}.Release|x64.Build.0 = Release|x64
+		{D7D3694E-189B-4AA9-AE3C-CEC7985C856B}.Release|x86.ActiveCfg = Release|Win32
+		{D7D3694E-189B-4AA9-AE3C-CEC7985C856B}.Release|x86.Build.0 = Release|Win32
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+	GlobalSection(SolutionProperties) = preSolution
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+	GlobalSection(ExtensibilityGlobals) = postSolution
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new file mode 100644
index 0000000..d636fc6
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+    <ProjectConfiguration Include="Release|x64">
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+    <PlatformToolset>v143</PlatformToolset>
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+    <ConfigurationType>Application</ConfigurationType>
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+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
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+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
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+  <ImportGroup Label="Shared">
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+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
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+  <PropertyGroup Label="UserMacros" />
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="main.c" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/Практическая 2/conversions/conversions.vcxproj.filters b/Практическая 2/conversions/conversions.vcxproj.filters
new file mode 100644
index 0000000..669bc4e
--- /dev/null
+++ b/Практическая 2/conversions/conversions.vcxproj.filters	
@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="Исходные файлы">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="Файлы заголовков">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="Файлы ресурсов">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="main.c">
+      <Filter>Исходные файлы</Filter>
+    </ClCompile>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/Практическая 2/conversions/main.c b/Практическая 2/conversions/main.c
new file mode 100644
index 0000000..3844d83
--- /dev/null
+++ b/Практическая 2/conversions/main.c	
@@ -0,0 +1,15 @@
+#include <stdio.h>
+#include <math.h>
+
+int main() {
+	double n = 0.33;
+	double sum = 0;
+	int base = 8;
+	for (int i = 0; i < 10; i++) {
+		printf_s("%d", (int)(n * base));
+		sum += (int)(n * base) * pow(base, -1 - i);
+		n = n * base - (int)(n * base);
+	}
+	printf_s("\n%lf", sum);
+	return 0;
+}
\ No newline at end of file
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