using System;

​

class Fruits

{

    protected int quantity;

    protected double unit_price;

    public void input (int x , double y)

    {

        quantity = x;

        unit_price = y;

    }

}

​

class Oranges : Fruits

{

    public double getPrice()

    {

        return (quantity * unit_price);

    }

}

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter Quantity: ");

        int num1 = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine("Enter Unit Price: ");

        double num2 = Convert.ToDouble(Console.ReadLine());

        Oranges cust1 = new Oranges();

        cust1.input(num1 , num2);

        Console.WriteLine("The total price is: RM " + cust1.getPrice());

    }

}