File list (Check if you may need any files):
DES
...\lab_3_DES.sln
...\lab_3_DES.suo
...\WindowsFormsApplication1
...\........................\bin
...\........................\...\Debug
...\........................\...\.....\1.txt
...\........................\...\.....\2.txt
...\........................\...\.....\decorder.txt
...\........................\...\.....\SomeText.txt
...\........................\...\.....\WindowsFormsApplication1.exe
...\........................\...\.....\WindowsFormsApplication1.pdb
...\........................\...\.....\WindowsFormsApplication1.vshost.exe
...\........................\...\.....\WindowsFormsApplication1.vshost.exe.manifest
...\........................\Form1.cs
...\........................\Form1.Designer.cs
...\........................\Form1.resx
...\........................\lab_3_DES.csproj
...\........................\obj
...\........................\...\Debug
...\........................\...\.....\lab_3_DES.csproj.FileListAbsolute.txt
...\........................\...\.....\lab_3_DES.csproj.GenerateResource.Cache
...\........................\...\.....\Refactor
...\........................\...\.....\TempPE
...\........................\...\.....\WindowsFormsApplication1.csproj.FileListAbsolute.txt
...\........................\...\.....\WindowsFormsApplication1.csproj.GenerateResource.Cache
...\........................\...\.....\WindowsFormsApplication1.exe
...\........................\...\.....\WindowsFormsApplication1.Form1.resources
...\........................\...\.....\WindowsFormsApplication1.pdb
...\........................\...\.....\WindowsFormsApplication1.Properties.Resources.resources
...\........................\Program.cs
...\........................\Properties
...\........................\..........\AssemblyInfo.cs
...\........................\..........\Resources.Designer.cs
...\........................\..........\Resources.resx
...\........................\..........\Settings.Designer.cs
...\........................\..........\Settings.settings