File list (Check if you may need any files):
Circle
......\Circle
......\Circle.sln
......\Circle.suo
......\......\bin
......\......\...\Debug
......\......\...\.....\Circle.exe
......\......\...\.....\Circle.pdb
......\......\...\.....\Circle.vshost.exe
......\......\...\.....\Circle.vshost.exe.manifest
......\......\Circle.csproj
......\......\GetCircleArea.cs
......\......\obj
......\......\...\Debug
......\......\...\.....\Circle.csproj.FileListAbsolute.txt
......\......\...\.....\Circle.exe
......\......\...\.....\Circle.pdb
......\......\...\.....\TempPE
......\......\Properties
......\......\..........\AssemblyInfo.cs