using System;

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public abstract class Employee

{

    public double salary = 30000;

    public void CalculateSalary()

    {

        Console.WriteLine($"salary : {salary}");

    }

    public abstract void CalculateBonus();

}

​

public class PermanantEmployee : Employee

{

    public void Print()

    {

        Console.WriteLine("Permanant Employee");

    }

    public override void CalculateBonus()

    {

        var bonus = base.salary * 0.5;

        Console.WriteLine($"bonus : {bonus}");

    }

}

​

public class ContractEmployee : Employee

{

    public void Print()

    {

        Console.WriteLine("Contract Employee");

    }

    public override void CalculateBonus()

    {

        var bonus = base.salary * 0.3;

        Console.WriteLine($"bonus : {bonus}");

    }

}

​

public class Program

{

    public static void Main()

    {

        ContractEmployee c = new ContractEmployee();

        c.Print();

        c.CalculateSalary();

        c.CalculateBonus();

    }

}

​

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