02. Wedding Party

import math
guest = int(input())
budget = int(input())
cuvert = guest * 20

if cuvert <= budget:
    money = budget - cuvert
    fireworks = math.trunc(money - (money * 0.4))
    money_end = math.trunc(money - fireworks)
    print (f"Yes! {math.trunc(money_end)} lv are for fireworks and {math.trunc(fireworks)} lv are for donation.")
else:
    money1 = cuvert - budget
    print (f"They won't have enough money to pay the covert. They will need {math.trunc(money1)} lv more.")