Bonus Points C#

using System;



class Program
{
    static void Main()
    {

        int n = int.Parse(Console.ReadLine());
        double bonusPoints = 0.0;
        double totalPoints = 0.0;

        if (n <= 100)
        {
            bonusPoints = 5;
        }
        else if (n > 100 && n <= 1000)
        {
            bonusPoints = n * 20 / 100;
        }
        else if (n > 1000)
        {
            bonusPoints = n * 10 / 100;
            }

        if (n % 2 == 0)
        {
            bonusPoints += 1;
        }
        else if (n % 10 == 5)
        {
            bonusPoints += 2;
        }

        totalPoints = n + bonusPoints;

        Console.WriteLine(bonusPoints);
        Console.WriteLine(totalPoints);

    }
}