using System;

 abstract public class methods {

     abstract public void captureSurgery();

     abstract public void displaySurgery();

}

public class Surgery : methods{

    public  override void  captureSurgery()

    {

        Console.WriteLine("Surgery captured");

    }

    public override void displaySurgery()

    {

        Console.WriteLine("Surgery displayed");

    }

}

public class Program

{

    public static void Main()

    {

        Surgery ob = new Surgery();

        int choice = 0 ;

        Console.WriteLine("Enter 1 to capture surgery , 2 to display surgery");

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

            switch(choice)

            {

                case 1: ob.captureSurgery(); break;

                case 2 :ob.displaySurgery(); break;

            }

        }

    }