ttt

excursion_price = float(input())
puzzles_cnt = int(input())
dolls_cnt = int(input())
bears_cnt = int(input())
minions_cnt = int(input())
trucks_cnt = int(input())
total_price = 0
sum_of_sales = puzzles_cnt * 2.60 + dolls_cnt * 3 + bears_cnt * 4.10 + minions_cnt * 8.20 + trucks_cnt * 2
number_of_toys = puzzles_cnt + dolls_cnt + bears_cnt + minions_cnt + trucks_cnt

if number_of_toys >= 50:
    sum_of_sales = sum_of_sales * 0.75

sum_of_sales = sum_of_sales * 0.90

if sum_of_sales >= excursion_price:
    money_left = sum_of_sales - excursion_price
    print(f"Yes! {money_left:.2f} lv left.")
else:
    needed_money = excursion_price - sum_of_sales
    print(f"Not enough money! {needed_money:.2f} lv needed.")