import java.util.Scanner;

public class FuelTankPartTwo {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String fuelType = scanner.nextLine();
        double fuelQuantity = Double.parseDouble(scanner.nextLine());
        String clubCard = scanner.nextLine();
        double A95 = 2.22 * fuelQuantity;
        double diesel = 2.33 * fuelQuantity;
        double gas = 0.93 * fuelQuantity;
        switch (fuelType){
            case "Gasoline":{
        if (fuelQuantity >= 20 && fuelQuantity <= 25){
         if (clubCard.equals("Yes")){
             A95 = 0.92 * (A95 - (0.18 * fuelQuantity)); }
         else if (clubCard.equals("No")){
             A95 = A95 * 0.92; }}
        if (fuelQuantity < 20){
            if (clubCard.equals("Yes")){
                A95 = (A95 - (0.18 * fuelQuantity));}
            else if (clubCard.equals("No")){
                A95 = A95;}}
        if (fuelQuantity > 25){
            if (clubCard.equals("Yes")){
                A95 = 0.90 * (A95 - (0.18 * fuelQuantity)); }
            else if (clubCard.equals("No")){
                A95 = 0.90 * A95; }}
                System.out.printf("%.2f lv.",A95);break;
            }
      case "Gas":{
            if (fuelQuantity >= 20 && fuelQuantity <= 25){
                if (clubCard.equals("Yes")){
                    gas = 0.92 * (gas - (0.08 * fuelQuantity)); }
                else if (clubCard.equals("No")){
                    gas = 0.92 * gas; }}
            if (fuelQuantity < 20){
                if (clubCard.equals("Yes")){
                    gas = (gas - (0.08 * fuelQuantity));}
                else if (clubCard.equals("No")){
                    gas = gas;}}
            if (fuelQuantity > 25){
                if (clubCard.equals("Yes")){
                    gas = 0.90 * (gas - (0.08 * fuelQuantity)); }
                else if (clubCard.equals("No")){
                    gas = 0.90 * gas; }}
            System.out.printf("%.2f lv.",gas);break;}

        case "Diesel":{
            if (fuelQuantity >= 20 && fuelQuantity <= 25){
                if (clubCard.equals("Yes")){
                    diesel = 0.92 * (diesel - (0.12 * fuelQuantity)); }
                else if (clubCard.equals("No")){
                    diesel = 0.92 * diesel; }}
            if (fuelQuantity < 20){
                if (clubCard.equals("Yes")){
                    diesel = (diesel - (0.12 * fuelQuantity));}
                else if (clubCard.equals("No")){
                    diesel = diesel;}}
            if (fuelQuantity > 25){
                if (clubCard.equals("Yes")){
                    diesel = 0.90 * (diesel - (0.12 * fuelQuantity)); }
                else if (clubCard.equals("No")){
                    diesel = 0.90 * diesel; }}
            System.out.printf("%.2f lv.",diesel);break;}

            }
            }
        }