import java.util.Scanner;

public class Telerik_34_CalculateDiscount {

  public static void main(String[] args) {

         Scanner sc = new Scanner(System.in);

         int items = Integer.parseInt(sc.nextLine());

         double disPrice=0.0;

         for (int i=1; i<=items; i++) {

         double price = Double.parseDouble(sc.nextLine());

         disPrice = 0.35*price;

         System.out.printf("\n%.2f",disPrice) ;
     								 }
  }
}