import java.util.*;

public class AppliancePowerCalculator {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        Set<String> validTypes = new HashSet<>(Arrays.asList("WashingMachine", "Refrigerator", "AirConditioner"));
        try {
            int n = Integer.parseInt(sc.nextLine().trim());
            double[] consumptions = new double[n];
            for (int i = 0; i < n; i++) {
                String[] parts = sc.nextLine().trim().split("\\s+");
                if (parts.length != 3 || !validTypes.contains(parts)) {
                    System.out.println("Invalid input");
                    return;
                }
                int power = Integer.parseInt(parts[1]);
                int hours = Integer.parseInt(parts[2]);
                if (power <= 0 || hours <= 0) {
                    System.out.println("Invalid input");
                    return;
                }
                switch (parts) {
                    case "WashingMachine":
                        consumptions[i] = power * hours;
                        break;
                    case "Refrigerator":
                        consumptions[i] = power * hours * 0.8;
                        break;
                    case "AirConditioner":
                        consumptions[i] = power * hours * 1.5;
                        break;
                }
            }
            for (double value : consumptions) {
                System.out.printf("%.2f\n", value);
            }
        } catch (Exception e) {
            System.out.println("Invalid input");
        }
    }
}