using System;

​

public class Program

{

    public static void Main()

    {

        string input = "TempValuations/040e95b9-6b67-4994-9de4-7deb2ec6fe6b.json";

        var jsonFileKeyString= input.Split('/').Last();

        var guidString = jsonFileKeyString[..jsonFileKeyString.IndexOf('.')];

        Console.WriteLine(Guid.Parse(guidString));  

    }

}