using System;
using System.IO;

namespace ConsoleApp2
{
    class Program
    {
        static void Main(string[] args)
        {
            using (StreamWriter sw = new StreamWriter("szamok.txt"))
            {
                {
                    for (int i = 1; i <= 10; i++)
                    {
                        sw.WriteLine(i);
                    }
                }

            }

            string line = "";
            using (StreamReader sr = new StreamReader("szamok.txt"))
            {
                while ((line = sr.ReadLine()) != null)
                {
                    Console.WriteLine(line);
                }
            }
            Console.ReadKey();
        }
    }
}