Harvest

import math
x=int(input())
y=float(input())
z=int(input())
workers=int(input())
wine=(x*0.4*y)/2.5
if wine<z:
  print(f"It will be a tough winter! More {int(z-wine)} liters wine needed.")
elif wine>z:
  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.")