using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Бонус точки");

        Console.WriteLine("число");

        var number = int.Parse(Console.ReadLine());

        double bonus = 0.0;

        if (number > 1000)

        {

        bonus = (number * 0.10);

        }

        else if (number <= 100)

        {

        bonus = number * 5;

        }

        else if (number > 100)

        {

        bonus = number * 0.20;

        }

        }

        }