using System;

public class Program

{

    class LibraryReader

    {

    private string Surname;

    private string Name;

    private string Nr;

    private string Faculty;

    private int Birthday;

    private int PhoneNr;

    private int BalansKnig;

    string s, Bookname;

    int KolBook;

    double price, sum=0;

    public LibraryReader(string aSurname, string aName, string aNr, string aFaculty, int aBirthday, int aPhoneNr, int aBalansKnig)

    {

    Surname=aSurname;

    Name=aName;

    Nr=aNr;

    Faculty=aFaculty;

    Birthday=aBirthday;

    PhoneNr=aPhoneNr;

    BalansKnig=aBalansKnig;

    }

    public void ReaderInfo()

    {

    Console.WriteLine(" Name: "+Surname+Name+ "\n Readers Nr: "+Nr+ "\n Faculty: "+Faculty+ "\n Birthday: "+Birthday+ "\n Phone Number: "+PhoneNr);

    }

    public void returnBook()

    {

    Console.WriteLine(Surname+Name+" vernul knigu <Vojna i mir>");

    }

    public void returnBook2()

    {

    Console.WriteLine(Surname+Name+" vernul knigu <Himija dlja 4ajnikov>");

    }   

    public void takeBook()

    {   

    Console.WriteLine("Skoljko knig vzjal: ");

    s=Console.ReadLine();

    KolBook=int.Parse(s);

    }

    public void bookname()

    {

    for(int i=0; i<KolBook; i++)

    {

    Console.WriteLine("\nNazvanie {0}.knigi: ",i+1);

    Bookname=Console.ReadLine();

    }

    if(KolBook>0) Console.WriteLine("\n"+Surname+Name+" vzjal "+KolBook+" knigi");

    if(KolBook==1) Console.WriteLine("\n"+Surname+Name+" vzjal "+KolBook+" knigu");

    }

​

    public void dept()

    {

    if(KolBook==1) Console.WriteLine(Surname+Name+" dolžen vernutj "+KolBook+" knigu");

    if(KolBook>0) Console.WriteLine(Surname+Name+" dolžen vernutj "+KolBook+" knigi");

    else Console.WriteLine(Surname+Name+" ne dolžen nichego ");

    }

    public void cash()

    {

    for(int i=0; i<KolBook; i++)

    {

    if(KolBook>0)

    {

    Console.WriteLine("\nCena {0}.knigi: ",i+1);

    s=Console.ReadLine();

    price=double.Parse(s);

    }

    sum+=price;

    }

    Console.WriteLine("\nObshaja Cena: "+sum+" euro");

    }

    public void statistic()

    {

    BalansKnig+=KolBook;

    Console.WriteLine("\nObshee koli4estvo vzatih knig za vsje vremja: "+BalansKnig);

    }

​

    }

    public static void Main()

    {

    LibraryReader SM= new LibraryReader ("Samsonov ","Maris", "SV5602", "IT", 15012000, 24589631, 8);

    Console.WriteLine("\n-------Readers Info----------\n"); 

    SM.ReaderInfo();

    Console.WriteLine("\n-------Books given----------\n");

    SM.returnBook();

    Console.WriteLine("\n-------Books taken----------\n");

    SM.takeBook();

    SM.bookname();

    Console.WriteLine("\n--------Debt and Price---------\n");

    SM.dept();

    SM.cash();

    SM.statistic();

    Console.WriteLine("\n-------END----------\n");  

    LibraryReader SJ= new LibraryReader ("Smith ","Jim", "SJ00874", "Filosofy", 25082000, 27590631, 12);

    Console.WriteLine("\n-------Readers Info----------\n"); 

    SJ.ReaderInfo();

    Console.WriteLine("\n-------Books given----------\n");

    SJ.returnBook2();

    Console.WriteLine("\n-------Books taken----------\n");

    SJ.takeBook();

    SJ.bookname();

    Console.WriteLine("\n--------Debt and Price---------\n");

    SJ.dept();

    SJ.cash();

    SJ.statistic();

    }

}