using System;
public class Program
{
public static void Main()
double MV,TB;
Console.WriteLine("Monto de Venta");
MV=double.Parse(Console.ReadLine());
if(MV>=0 && MV<1000){
TB=(0*MV)/100;
Console.WriteLine(TB);
}
else{
if(MV>=1000 && MV<5000){
TB=(3*MV) / 100;
if(MV>=2000){
TB=(8*MV)/100;
}else{
Console.WriteLine("No hay datos");