using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Enter numberr");

        int n = int.Parse(Console.ReadLine());

        double bonus = 0;

        if (n<=100)

            bonus = 5;

        if ((n>100) && (n<=1000))

            bonus = 0.2*n;

        if (n>1000)

            bonus = 0.1*n;

        if (n%2==0)

            bonus= bonus+1;

        if (n%10==5)

            bonus=bonus+2;

        Console.WriteLine(bonus);

        //by AndreI VeLchev

    }

}