import java.util.*;
public class Main { public static void main(String[] args) { Scanner console = new Scanner(System.in); int price = console.nextInt(); int cost = 0; if(price < 100) { cost = (int)price; }else if(price < 500) { cost = (int)(price0.9); }else if(price < 2000) { cost = (int)(price0.8); }else if(price < 5000) { cost = (int)(price0.7); }else cost = (int)(price0.6);
//write your code here......
System.out.println(cost);
}
}