using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Лаба7 
{
    class Program
    {
        static void peredel(string a)
        {
            string text = System.IO.File.ReadAllText(a);
            string[] sent = text.Split(new[] { @"[.;?!]" }, StringSplitOptions.RemoveEmptyEntries);
            for (int i = 0; i < sent.Length; ++i)
            {
                char[] sentchar = sent[i].ToCharArray();
                bool check = true;
                for (int i2 = 0; i2 < sentchar.Length; ++i2)
                {
                    if (sentchar[i2] == ',')
                        check = false;
                }
                if (check)
                    Console.WriteLine(sent[i] + ". ");
            }
        }
        static void Main(string[] args)
        {
            peredel(@"D:\1.txt");
        }
    }
}