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

namespace ConsoleApplication105
{
    class Program
    {
        struct knigi
        {
            public string nazvanie;
            public string avtor;
            public string godvyhoda;
            public string izdatelstvo;
            public string sebestoimost;
            public string cena;
            public string pribyl;
        }
        static void Main(string[] args)
        {
            knigi[] kniga = new knigi[3];
            string q = "К";
            string input_path = @"D:\7 лаба\Книга.txt";
            using (StreamReader sr = new StreamReader(input_path, System.Text.Encoding.Default))
            {
                string line;
                int a = 0;
                int b = 0;


                for (int i = 0; i < a; i++)
                {
                    line = sr.ReadLine();

                    string[] w = line.Split(new char[] { ' ' });

                    kniga[i].nazvanie = w[0];
                    kniga[i].avtor = w[1];
                    kniga[i].godvyhoda = (w[2]);
                    kniga[i].izdatelstvo = (w[3]);
                    kniga[i].sebestoimost = (w[4]);
                    kniga[i].cena = (w[5]);
                    kniga[i].pribyl = (w[6]);
                }

                string output_path = @"D:\7 лаба\КнигаЗапись.txt ";
                using (StreamWriter sw = new StreamWriter(output_path, false, System.Text.Encoding.Default))
                {
                    for (int i = 0; i < b; i++)
                        if ((kniga[i].avtor).Contains(q) & ((kniga[i].avtor).IndexOf(q) == 0))

                        {
                            sw.WriteLine(kniga[i].nazvanie + " " + kniga[i].avtor + " " + kniga[i].godvyhoda + " " + kniga[i].izdatelstvo + " " + kniga[i].sebestoimost + " " + kniga[i].cena + " " + kniga[i].pribyl);
                        }
                }
            }
            Console.ReadKey();

        }
    }
}