using System;

public class Program

{

    public static void Main()

    {

         double pay = 0;

        pay =  double.Parse(Console.ReadLine());

        if(pay>1000){

            pay = pay*8/10;

        Console.WriteLine("消費金額超過1000打8折"+pay);

        }

         else

        Console.WriteLine("消費金額"+pay);

    }

}