LineNumbers- with stream and counter

using System;
using System.IO;
using System.Linq;

namespace LineNumbers
{
    class Program
    {
        static void Main(string[] args)
        {
            using(var reader=new StreamReader("input.txt"))
            {
                using (var writer = new StreamWriter("output.txt"))
                {
                    int lineCounter = 1;
                    while (!reader.EndOfStream)
                    {
                        var line = reader.ReadLine();
                        var lineWithoutSpace = line.Replace(" ", "");
                        var listWithChars = lineWithoutSpace.ToCharArray().ToList();
                        int sumLetter = 0;
                        int sumPunctuationMarks = 0;
                        foreach (var symbol in listWithChars)
                        {
                            if (char.IsLetter(symbol))
                            {
                                sumLetter++;
                            }

                            else
                            {
                                sumPunctuationMarks++;
                            }
                        }

                        writer.WriteLine($"Line {lineCounter}:{line}({sumLetter})({sumPunctuationMarks})");
                        listWithChars.Clear();
                        lineCounter++;
                    }
                }
            }
        }
    }
}