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

namespace _05.WriteToFile
{
    class Program
    {
        static void Main(string[] args)
        {
            var text = File.ReadAllText("sample_text.txt").Split(new[] { '.', ',', '!', '?', ':' }, StringSplitOptions.RemoveEmptyEntries).ToList();
            if (!File.Exists("outputter.txt"))
            {
                File.WriteAllText("output.txt", string.Join(" ", text));
            }
        }
    }
}