BonusScore

using System;
class BonusScore
{
    static void Main(string[] args)
    {
        Console.WriteLine("Enter score : ");
        var num = int.Parse(Console.ReadLine());
        var bonusPoints = 0.0;
        if (num <= 100)
        {
            bonusPoints = 5;
        }
        else if ((num > 100) && (num <= 1000))
        {
            bonusPoints = num * 0.20;
        }
        else if (num > 1000)
        {
            bonusPoints = num * 0.10;
        }
        if (num % 2 == 0)
        {
            bonusPoints += 1;
        }
        else if (num % 10 == 5)
        {
            bonusPoints += 2;
        }
        Console.WriteLine("Bonus score: {0}", bonusPoints);
        Console.WriteLine("Total score: {0}", num + bonusPoints);
    }
}