03. Harvest

import math
x = int(input())
y = float(input())
z = int(input())
workers = int(input())
wine = 0.4 * x * y / 2.5

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