using System;

public class Program

{

    public static void Main()

    {

        int buku;

        int b1 = 135000;

        int b2 = 221000;

        int b3 = 39000;

        int b4 = 185000;

        int b5 = 50000;

        int pilihan = 0;

        bool ulang = true;

        do {

            Console.WriteLine("\t\t\t\t\t\t========================");

            Console.WriteLine("\t\t\t\t\t\t  TOKO BUKU SUMBERSARI");

            Console.WriteLine("\t\t\t\t\t\t========================\n\n");

            Console.WriteLine("Daftar Buku dan Harga :");

            Console.WriteLine("———————————————————————\n");

            Console.WriteLine("1. Novel The Devotion of Suspect X by Keigo Higashino \t\t =  Rp 135.000");

            Console.WriteLine("2. Novel Confession by Kanae Minato \t\t\t\t\t\t   =  Rp 221.000");

            Console.WriteLine("3. Novel The Travelling Cat Chronicles by Hiro Arikawa \t\t=  Rp 39.000");

            Console.WriteLine("4. Novel Go by Kazuki Kaneshiro \t\t\t\t\t\t\t   =  Rp 185.000");

            Console.WriteLine("5. Novel Girls in the Dark by Akiyoshi Rikako \t\t\t\t =  Rp 50.000");

        Console.WriteLine();

        Console.WriteLine("Masukkan Angka Pilihan Anda : ");

        buku=int.Parse(Console.ReadLine());

        if (buku==1)

        {

            Console.WriteLine("Pilihan 1");

            pilihan = b1;

            Console.WriteLine("Judul Buku = Novel The Devotion of Suspect X by Keigo Higashino ");

            Console.WriteLine("Harga buku = "+pilihan);

        }else if(buku==2){

            Console.WriteLine("Pilihan 2");

            pilihan = b2;

            Console.WriteLine("Judul Buku = Confession by Kanae Minato ");

            Console.WriteLine("Harga buku = "+pilihan);

        }else if(buku==3){

            Console.WriteLine("Pilihan 3");

            pilihan = b3;

            Console.WriteLine("Judul Buku = Novel The Travelling Cat Chronicles by Hiro Arikawa ");

            Console.WriteLine("Harga buku = "+pilihan);

        }else if(buku==4){

            Console.WriteLine("Pilihan 4");

            pilihan = b4;

            Console.WriteLine("Judul Buku = Go by Kazuki Kaneshiro ");

            Console.WriteLine("Harga buku = "+pilihan);

        }else if(buku==5){

            Console.WriteLine("Pilihan 5");

            pilihan = b5;

            Console.WriteLine("Judul Buku : Girls in the Dark by Akiyoshi Rikako ");

            Console.WriteLine("Harga buku = "+pilihan);

        }

            else {

            Console.WriteLine("Maaf Pilihanmu tidak ada");

        }       

            Console.WriteLine();

            Console.WriteLine("#====================================# ");

            Console.WriteLine("Besar uang yang diterima Rp. ");

        int uang = int.Parse(Console.ReadLine());

        Console.WriteLine("Uang bayar \t\t\tRp. "+uang);

        int kembalian = uang-pilihan;

        Console.WriteLine("Uang kembalian anda\tRp. "+kembalian);

        Console.WriteLine("#====================================# ");

        Console.WriteLine("Ingin Bertransaksi Lagi? (Y/T)");

        string jawaban = Console.ReadLine();

            if(jawaban.Equals("y")){

                ulang = true;

            }else{

                ulang = false;

            }

        }while(ulang);

        Console.WriteLine("==Terima kasih atas kunjungan anda==");

    }

}