using System;
public class Program
{
public static void Main()
// Directory.EnumerateFiles
// https://docs.microsoft.com/en-us/dotnet/api/system.io.directory.enumeratefiles?view=net-6.0
// Path.GetFileNameWithoutExtension
// https://docs.microsoft.com/en-us/dotnet/api/system.io.path.getfilenamewithoutextension?view=net-6.0
// Path.GetDirectoryName
// https://docs.microsoft.com/en-us/dotnet/api/system.io.path.getdirectoryname?view=net-6.0
// Path.GetExtension
// https://docs.microsoft.com/en-us/dotnet/api/system.io.path.getextension?view=net-6.0
// thread.currentthread.currentculture.textinfo.totitlecase(filename.tolower())
// TextInfo.ToTitleCase
// https://docs.microsoft.com/en-us/dotnet/api/system.globalization.textinfo.totitlecase?view=net-6.0
// StringComparer.InvariantCultureIgnoreCase
// https://docs.microsoft.com/en-us/dotnet/api/system.stringcomparer.invariantcultureignorecase?view=net-6.0
Console.WriteLine("Hello World");
}