Files

using System;
using System.Collections.Generic;
using System.Linq;

namespace Files
{
    public class Files
    {
        public static void Main()
        {
            int numberOfRoots = int.Parse(Console.ReadLine());

            Dictionary<string, Dictionary<string, long>> allDirectories =
                            new Dictionary<string, Dictionary<string, long>>();

            for (int currRoot = 0; currRoot < numberOfRoots; currRoot++)
            {
                string[] inputLine = Console.ReadLine().Split(';');
                string[] directory = inputLine[0].Split('\\');

                string folderName = directory[0];
                string fileName = directory[directory.Length - 1];
                long fileSize = long.Parse(inputLine[inputLine.Length - 1]);

                if (!allDirectories.ContainsKey(folderName))
                {
                    allDirectories.Add(folderName, new Dictionary<string, long>());
                }

                allDirectories[folderName][fileName] = fileSize;
            }


            string[] searchInfo = Console.ReadLine().Split();
            string extensionToSearch = searchInfo[0];
            string folderToSearchIn = searchInfo[2];

            if (!allDirectories.ContainsKey(folderToSearchIn))
            {
                Console.WriteLine("No");

                return;
            }

            bool thereIsMatch = false;
            foreach (KeyValuePair<string, long> fileAndSize in allDirectories[folderToSearchIn]
                                                                    .OrderByDescending(f => f.Value)
                                                                    .ThenBy(n => n.Key))
            {
                string[] fileInfo = fileAndSize.Key.Split('.');
                string fileExtension = fileInfo[1];

                if (extensionToSearch.Equals(fileExtension))
                {
                    thereIsMatch = true;
                    Console.WriteLine($"{fileAndSize.Key} - {fileAndSize.Value} KB");
                }
            }

            if (!thereIsMatch)
            {
                Console.WriteLine("No");
            }
        }
    }
}