Files-NotFinisheed

            //var regexRoot = @"\b([a-zA-Z]+)\:?\b";
            //var regexFile = @"\b([a-zA-Z]+)\.([a-zA-z]+)\b";
            //var regexSize = @"\b(\d+)\b";
            //var regexExt = @"\b(\.[a-z]+)\b";
            //MatchCollection matches = new MatchCollection();
            //int n = int.Parse(Console.ReadLine());
            //var pathdetails = new List<string>();
            //var inputLine = "";
            //for (int i = 0; i < n; i++)
            //{
            //    inputLine = Console.ReadLine();
            //    var paths = new List<string>();
            //    paths.Add(inputLine);
            //    pathdetails = inputLine.Split(new [] {' ',',','.',';',':'}).ToList();
            //}
            ////Console.WriteLine(string.Format("[" + string.Join(",",pathdetails) +"]"));
            //var keyLine = Console.ReadLine();
            //var extkey = keyLine[0];
            //var pathKey = keyLine[2];
            ////if (pathdetails[0]  == pathKey && pathdetails[pathdetails.Count - 2] == extkey)
            ////{

            ////}



            var rootMatches = new SortedDictionary<string, Dictionary<string,Dictionary<string,long>>>();
            var directories = new List<string>();
            var extensions = new List<string>();
            var n = int.Parse(Console.ReadLine());
            var extension = "";
            var root = "";
            var file = "";
            var size = 0L;
            for (int i = 0; i < n; i++)
            {
                var inputLine = Console.ReadLine();
                directories.Add(inputLine);
                var input = inputLine.Split(new [] {'\\',' ',',',';','.',':'},StringSplitOptions.RemoveEmptyEntries).ToList();
                root = input[0];
                file = input[input.Count - 3];
                extension = input[input.Count - 2];
                size = long.Parse(input[input.Count - 1]);
                //extensions.Add(extension);
                if (!rootMatches.ContainsKey(root))
                {
                    //rootMatches[root] = new Dictionary<string,Dictionary<string,long>>();
                    rootMatches.Add(root,new Dictionary<string,Dictionary<string,long>>());

                }
            }
            var keyLine = Console.ReadLine().Split();
            var rootKey = keyLine[2];
            var rootExt = keyLine[0];


            foreach (var roote in rootMatches)
            {
                if (rootMatches.ContainsKey(rootKey) && rootMatches.Values.Last().Last().Equals(rootExt))
                {
                    if (directories.Contains(root) && directories.Contains(extension))
                    {
                        Console.WriteLine("{0}.{1} - {2} KB",file,extension,size);
                    }

                }
            }
            foreach (var root1 in rootMatches)
            {
                if (rootMatches.ContainsKey(rootKey))
                {
                    foreach (var file in rootMatches[root1].Select(k => k.Value))
                    {
                        foreach (var extension in rootMatches[root1[file]].Select(a => a.Value))
                        {
                            if (rootMatches[root1[file]].ContainsKey(rootExt))
                            {
                                Console.WriteLine(directories[root]);
                            }

                        }
                    }
                }
            }

            //var rootMatch = Regex.Matches(rootKey,regexRoot);