diff --git a/CSHARP/Lessons.md b/CSHARP/Lessons.md
new file mode 100644
index 0000000..e69de29
diff --git a/CSHARP/obj/CSHARP.csproj.nuget.dgspec.json b/CSHARP/obj/CSHARP.csproj.nuget.dgspec.json
index c5fd1d1..c135888 100644
--- a/CSHARP/obj/CSHARP.csproj.nuget.dgspec.json
+++ b/CSHARP/obj/CSHARP.csproj.nuget.dgspec.json
@@ -1,17 +1,17 @@
 {
   "format": 1,
   "restore": {
-    "c:\\Users\\user\\Desktop\\git\\gitea\\dev\\CSHARP\\CSHARP.csproj": {}
+    "C:\\Users\\user\\Desktop\\git\\gitea\\dev\\CSHARP\\CSHARP.csproj": {}
   },
   "projects": {
-    "c:\\Users\\user\\Desktop\\git\\gitea\\dev\\CSHARP\\CSHARP.csproj": {
+    "C:\\Users\\user\\Desktop\\git\\gitea\\dev\\CSHARP\\CSHARP.csproj": {
       "version": "1.0.0",
       "restore": {
-        "projectUniqueName": "c:\\Users\\user\\Desktop\\git\\gitea\\dev\\CSHARP\\CSHARP.csproj",
+        "projectUniqueName": "C:\\Users\\user\\Desktop\\git\\gitea\\dev\\CSHARP\\CSHARP.csproj",
         "projectName": "CSHARP",
-        "projectPath": "c:\\Users\\user\\Desktop\\git\\gitea\\dev\\CSHARP\\CSHARP.csproj",
+        "projectPath": "C:\\Users\\user\\Desktop\\git\\gitea\\dev\\CSHARP\\CSHARP.csproj",
         "packagesPath": "C:\\Users\\user\\.nuget\\packages\\",
-        "outputPath": "c:\\Users\\user\\Desktop\\git\\gitea\\dev\\CSHARP\\obj\\",
+        "outputPath": "C:\\Users\\user\\Desktop\\git\\gitea\\dev\\CSHARP\\obj\\",
         "projectStyle": "PackageReference",
         "configFilePaths": [
           "C:\\Users\\user\\AppData\\Roaming\\NuGet\\NuGet.Config"
diff --git a/CSHARP/obj/Debug/net9.0/CSHARP.AssemblyInfo.cs b/CSHARP/obj/Debug/net9.0/CSHARP.AssemblyInfo.cs
index 81f065c..d1b0758 100644
--- a/CSHARP/obj/Debug/net9.0/CSHARP.AssemblyInfo.cs
+++ b/CSHARP/obj/Debug/net9.0/CSHARP.AssemblyInfo.cs
@@ -13,7 +13,7 @@ using System.Reflection;
 [assembly: System.Reflection.AssemblyCompanyAttribute("CSHARP")]
 [assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
 [assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
-[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+1ef1d62c3a9c3077e29f4e156e22b80e92847ef4")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+85c2d250c01f4ee1c62a217cda019d8b45da2f44")]
 [assembly: System.Reflection.AssemblyProductAttribute("CSHARP")]
 [assembly: System.Reflection.AssemblyTitleAttribute("CSHARP")]
 [assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
diff --git a/CSHARP/obj/Debug/net9.0/CSHARP.AssemblyInfoInputs.cache b/CSHARP/obj/Debug/net9.0/CSHARP.AssemblyInfoInputs.cache
index 6b6de06..8c9b724 100644
--- a/CSHARP/obj/Debug/net9.0/CSHARP.AssemblyInfoInputs.cache
+++ b/CSHARP/obj/Debug/net9.0/CSHARP.AssemblyInfoInputs.cache
@@ -1 +1 @@
-6e9ea961cae0202d9c7081a3587e76307679ac9dc2e08dd54313d847a48bcf66
+3de7edf971a36d8f480ea014734f387790fab06fc009fabab9562c2e90fac240
diff --git a/CSHARP/obj/Debug/net9.0/CSHARP.GeneratedMSBuildEditorConfig.editorconfig b/CSHARP/obj/Debug/net9.0/CSHARP.GeneratedMSBuildEditorConfig.editorconfig
index a05b45b..673a616 100644
--- a/CSHARP/obj/Debug/net9.0/CSHARP.GeneratedMSBuildEditorConfig.editorconfig
+++ b/CSHARP/obj/Debug/net9.0/CSHARP.GeneratedMSBuildEditorConfig.editorconfig
@@ -8,7 +8,7 @@ build_property.PlatformNeutralAssembly =
 build_property.EnforceExtendedAnalyzerRules = 
 build_property._SupportedPlatformList = Linux,macOS,Windows
 build_property.RootNamespace = CSHARP
-build_property.ProjectDir = c:\Users\user\Desktop\git\gitea\dev\CSHARP\
+build_property.ProjectDir = C:\Users\user\Desktop\git\gitea\dev\CSHARP\
 build_property.EnableComHosting = 
 build_property.EnableGeneratedComInterfaceComImportInterop = 
 build_property.EffectiveAnalysisLevelStyle = 9.0
diff --git a/CSHARP/obj/Debug/net9.0/CSHARP.assets.cache b/CSHARP/obj/Debug/net9.0/CSHARP.assets.cache
index 8f095e2..261cc4c 100644
Binary files a/CSHARP/obj/Debug/net9.0/CSHARP.assets.cache and b/CSHARP/obj/Debug/net9.0/CSHARP.assets.cache differ
diff --git a/CSHARP/obj/project.nuget.cache b/CSHARP/obj/project.nuget.cache
index 9bf6617..065aff4 100644
--- a/CSHARP/obj/project.nuget.cache
+++ b/CSHARP/obj/project.nuget.cache
@@ -1,8 +1,8 @@
 {
   "version": 2,
-  "dgSpecHash": "RDEzmUi+Jk0=",
+  "dgSpecHash": "ZDpYdmgpnB8=",
   "success": true,
-  "projectFilePath": "c:\\Users\\user\\Desktop\\git\\gitea\\dev\\CSHARP\\CSHARP.csproj",
+  "projectFilePath": "C:\\Users\\user\\Desktop\\git\\gitea\\dev\\CSHARP\\CSHARP.csproj",
   "expectedPackageFiles": [],
   "logs": []
 }
\ No newline at end of file
diff --git a/dev.sln b/dev.sln
new file mode 100644
index 0000000..d159e1b
--- /dev/null
+++ b/dev.sln
@@ -0,0 +1,24 @@
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.5.2.0
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CSHARP", "CSHARP\CSHARP.csproj", "{CF022C7B-CAF3-706D-67E1-FB93518229B7}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{CF022C7B-CAF3-706D-67E1-FB93518229B7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{CF022C7B-CAF3-706D-67E1-FB93518229B7}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{CF022C7B-CAF3-706D-67E1-FB93518229B7}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{CF022C7B-CAF3-706D-67E1-FB93518229B7}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {C4417B32-E9AE-4286-8B5D-0C522F93F6C9}
+	EndGlobalSection
+EndGlobal