using System;

public class Program

{

    public  class Doctor

    {

        public string name; public int age;

        public string university; public string category;

        public void doctor() {}

        public void doctor(string n, int a, string u, string c)

        {

            name=n; age=a; university=u; category=c;

        }

    public void printdoctor()

        {

            Console.Write("\n");

            Console.WriteLine("Doctor name:{0}", name);

            Console.WriteLine("Doctor age: {0}",age);

            Console.WriteLine("Doctor university: {0}",university); 

            Console.WriteLine("Doctor category: {0}",category); 

        }

   }

​

class access1

{

 public string name;

    public void print()

    { Console.WriteLine("\nMInii ner bol - "+name);}

}

​

class access2

{

private static string name;

public void print()

{ Console.WriteLine("nMy name is" + name);}

    public string Name

   {

    get

    { return name;}

    set

    { name=value;}

​

    }

  }

public static int basepow;

static int power (int po)

{if (po ==0)

{return 1; }

 else

 { return basepow*power(po-1);}

}

public static void Main()

   {

    int opt; string a;

    label:

    Console.WriteLine("Bodlogiin dugaaraa oruulna uu");

    opt= Convert.ToInt32(Console.ReadLine());

    switch (opt)

    {

        case 1:

            Console.WriteLine("---Bod1--"); //86

            string na; int ag; string un; string ca;

            Doctor doc = new Doctor();

            Console.Write("Enter Doctor name:"); na= Console.ReadLine();

            Console.Write("Enter Doctor age:"); ag= Convert.ToInt16(Console.ReadLine());

            Console.Write("Enter Doctor university:"); un= Console.ReadLine();

            Console.Write("Enter Doctor category:"); ca= Console.ReadLine();

            doc.doctor( na, ag, un, ca);

            doc.printdoctor();

            break;

        case 2:

            Console.WriteLine("---Bod2--");//87

            access1 ac1 = new access1();

            Console.Write("Enter your name:\t"); 

            ac1.name = Console.ReadLine(); ac1.print();

            break;

        case 3:

            Console.WriteLine("---Bod3--");//89

            access2 ac2 = new access2();

            Console.Write("Enter your name:\t"); 

            ac2.Name = Console.ReadLine(); ac2.print();

            break;

        case 4:

            Console.WriteLine("---Bod4--");//Рекурс 92

            Console.Write("Зэрэг:"); int pow = Convert.ToInt32(Console.ReadLine());

            Console.Write("Суурь:"); basepow = Convert.ToInt32(Console.ReadLine());

            int n= power(pow); Console.WriteLine("Result: {0}",n);

            break;

        case 5:

            Console.WriteLine("---Bod5--");//Рекурс 93

            Console.Write("Факториал олох дугаараа оруулна уу??: ");

            int n1 = Convert.ToInt32(Console.ReadLine());

            int r = Fact(n1);

            Console.WriteLine(n1.ToString()+ "!="+r.ToString());

        break;

        default: Console.WriteLine("Buruu dugaar baina !!!!");

        goto label;

    } 

        Console.WriteLine("Dakhin ekhluuleh bol y tovchiig darna uu");

        a=Console.ReadLine();

        if (a == "y") { goto label;

                      }