03.harvest

import math

harvest = int(input())
grapes_kv = float(input())
wine_litres = int(input())
working_people = int(input())

production = harvest * grapes_kv
wine_production = (production / 2.5) * 0.4

if wine_litres > wine_production:
    print(f"It will be a tough winter! More {math.floor(wine_litres - wine_production)} liters wine needed.")
else:
    print(f"Good harvest this year! Total wine: {math.ceil(wine_production)} liters.")
    print(f"{math.floor(wine_production - wine_litres)} liters left -> {math.ceil((wine_production - wine_litres) / working_people)} liters per person. ")