import java.util.Scanner;

public class AppliancePowerConsumption {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        int n = scanner.nextInt();
        scanner.nextLine();

        for (int i = 0; i < n; i++) {
            String line = scanner.nextLine();
            String[] parts = line.split(" ");

            String applianceType = parts[0];
            double powerRating = Double.parseDouble(parts[1]);
            double hoursUsed = Double.parseDouble(parts[2]);

            double consumption = 0.0;

            switch (applianceType) {
                case "WashingMachine":
                    consumption = powerRating * hoursUsed;
                    break;
                case "Refrigerator":
                    consumption = powerRating * hoursUsed * 0.8;
                    break;
                case "AirConditioner":
                    consumption = powerRating * hoursUsed * 1.5;
                    break;
                default:
                    System.out.println( + applianceType);
                    break;
            }

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

        scanner.close();
    }
}