using System;
namespace Solution {
  class Solution {
    static void Main(string[] args) {
        string n;
        float s;
        do{
            string cadena=Console.ReadLine();
            string []ns=cadena.Split(' ');
            n = ns[0];
            if(ns.Length == 2){
                s = Convert.ToSingle(ns[1]);
                if(s<500001)
                    Console.WriteLine("EXCENTO");
                else if(s<1000001)
                    Console.WriteLine(s*0.08);
                else if(s< 1800001)
                     Console.WriteLine(s*0.1);
                else if(s<2500001)
                    Console.WriteLine(s*0.15);
                else if(s>2500000)
                    Console.WriteLine(s*0.2);
            }
        }while(n!="*");
    }
  }
}