using System;

​

   public class Program

    {

        public static void Main(string[] args)

        {

            Developer dev = new JuniorDeveloper(1, "Qurban");

            Console.WriteLine(dev.CalculateBonus(1000));

        }

    }

    public abstract class Developer

    {

        public int Id { get; set; }

        public string  Name { get; set; }

        public string Position { get; set; }

​

        public Developer(int id,string name)

        {

            Id = id;

            Name = name;

        }

        public abstract double CalculateBonus(double salary);

    }

​

    public class JuniorDeveloper : Developer

    {

        public JuniorDeveloper(int id, string name) : base(id, name) { }

        public override double CalculateBonus(double salary)

        {

            return salary * 0.5;

        }

}