using System;

public class Program

{

    public static void Main()

    {   

         string filename = "Admin Cancel Fees 202501.xlsx";

        var stringlength = filename.Length;

        var feesPos = filename.IndexOf("Fees ");

        var endingPos = filename.IndexOf(".");

        Console.WriteLine($"String Length: {stringlength}");

        Console.WriteLine($"Fees Pos: {feesPos}");

        Console.WriteLine($"End Pos: {endingPos}");

        string runMed = filename.Substring(filename.IndexOf("Fees ") + 5, filename.Length - filename.IndexOf("Fees ")).Trim();

        Console.WriteLine($"Run MED: {runMed}");

    }

}