nai golqmo chislo ot fail

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;

namespace ConsoleApp19
{
    class Program
    {
        static void Main(string[] args)
        {
            string max = "";
            string s;
            StreamReader read = new StreamReader("D:\\numbers.txt");
            while (!read.EndOfStream)
            {
                s = read.ReadLine();
                if (max.CompareTo(s) == -1) max = s;
            }
            Console.WriteLine(max);
        }
    }
}