class Program
    {
        static void Main(string[] args)
        {
            string line = "start";
            int count = 0;
            List<string> linebox = new List<string>();
            List<string> wordbox = new List<string>();
            try
            {
                StreamReader sr = new StreamReader(@"C:\Users\Home\source\repos\ConsoleApp1\lul.txt");
                while(line != null)
                {
                    line = sr.ReadLine();
                    if(line == null)
                    {
                        continue;
                    }
                    else
                    {
                        linebox.Add(line);
                    }

                }
                sr.Close();
            }
            catch(Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
            foreach(string s in linebox)
            {
                wordbox.AddRange(s.Split(' '));
            }
            foreach(string s in wordbox)
            {
                if(s.Length <= 4)
                {
                    count++;
                }
            }

            Console.WriteLine("Количество слов, в которых не больше 4 букв: {0}", count);
            Console.ReadLine();

        }
    }