ff

type_of_gas = input()
liters = float(input())
card = input()

diesel_price = 2.33
gasoline_price = 2.22
gas_price = 0.93
if card == 'Yes':
    diesel_discount = diesel_price - 0.12
    gasoline_discount = gasoline_price - 0.18
    gas_discount = gas_price - 0.08
    total_price_diesel = diesel_discount * liters
    total_price_gasoline = gasoline_discount * liters
    total_price_gas = gas_discount * liters
else:
    total_price_diesel = diesel_price * liters
    total_price_gasoline = gasoline_price * liters
    total_price_gas = gas_price * liters

if 20 <= liters <= 25:
    total_price_diesel *= 0.92
    total_price_gasoline *= 0.92
    total_price_gas *= 0.92
elif liters > 25:
    total_price_diesel *= 0.90
    total_price_gasoline *= 0.90
    total_price_gas *= 0.90
if type_of_gas == "Gas":
    print(f"{total_price_gas:.2f} lv.")
elif type_of_gas == "Gasoline":
    print(f"{total_price_gasoline:.2f} lv.")
else:
    print(f'{total_price_diesel:.2f} lv.')