View difference between Paste ID: hS2kELzF and A0YM4BHh

 using System;
 using System.Collections.Generic;
 using System.Linq;
 
 namespace _04.Files
 {
     public class File
     {
         public string Name { get; set; }
 
         public string Folder { get; set; }
 
         public long Size { get; set; }
 
     }
 
     public class Files
     {
         public static void Main()
         {
             var filesNumber = int.Parse(Console.ReadLine());
             var allFiles = new List<File>();
 
             for (int i = 0; i < filesNumber; i++)
             {
                 var input = Console.ReadLine().Split('\\');
                 var fileData = input.Last().Split(';');
                 var fileName = fileData[0];
                 var fileSize = fileData.Last();
 
                 var currFile = new File();
                 currFile.Folder = input[0];
                 currFile.Name = fileName;
                 currFile.Size = long.Parse(fileSize);
                 allFiles.Add(currFile);
             }
 
             var command = Console.ReadLine().Split(new[] {' '}, StringSplitOptions.RemoveEmptyEntries);
             var folder = command.Last();
             var ext = command.First();
 
             var results = new Dictionary<string,long>();
 
             foreach (var file in allFiles)
             {
                 if (file.Folder.Equals(folder) && file.Name.EndsWith(ext))
                 {
                     results[file.Name] = file.Size;
                 }
             }
 
             if (results.Count == 0)
             {
                 Console.WriteLine("No");
             }
 
             else
             {
                 foreach (var result in results.OrderByDescending(r => r.Value).ThenBy(r => r.Key))
                 {
                     Console.WriteLine($"{result.Key} - {result.Value} KB");
                 }
             }
         }
     }
 }