using System;

public class Program

{

    public static void Main()

    {

        int quantinity;

        double money;

        double total;

            money = 599.99;

        Console.WriteLine("how much unicorns do you wnat to buy ");

        quantinity = Convert.ToInt16(Console.ReadLine());

        if(quantinity >10){

            money = 499;

            total =  quantinity * money;

        Console.WriteLine(" you need " + total+ "pounds");

    }else{

            money = 6;

            total =  quantinity * money;

        Console.WriteLine(" you need " + total+ "pounds");

}

}

}