ski_trip

#1.Read input
days_spent = int(input())
room_type = input()
feedback = input()
#2.Calculate nights spent
nights_spent = days_spent - 1
#3.Check if has discount
discount = 0
price = 0
if room_type == "apartment":
    price = 25
    if nights_spent < 10:
        discount = 0.3
    elif 10 <= nights_spent <= 15:
        discount = 0.35
    elif nights_spent > 15:
        discount = 0.5
elif room_type == "president_apartment":
    price = 35
    if nights_spent < 10:
        discount = 0.1
    elif 10 <= nights_spent <= 15:
        discount = 0.15
    elif nights_spent > 15:
        discount = 0.2
elif room_type == "room for one person":
    price = 18
#4.Calculate stay price
total_sum = nights_spent * price
#5.Apply discount
total_sum -= total_sum * discount
print(total_sum)
#6.Check feedback
if feedback == "positive":
    #6.1 if positive add 25%
    total_sum += total_sum * 0.25
elif feedback == "negative":
    #6.2 if negative substract 10%
    total_sum -= total_sum * 0.1

#7. Print output

print(f'{total_sum:.2f}')