Harvest

X = int(input())
Y = float(input())
Z = int(input())
workers = int(input())

Grapes = X * Y
Wine = 40/100 * Grapes/2.5

if Wine < Z:
    needed = Z - Wine
    print(f"It will be a tough winter! More {round(needed)} liters wine needed.")
elif Wine > Z:
    remain = Wine - Z
    for_workers = remain/workers
    print(f"Good harvest this year! Total wine: {round(Wine)} liters.")
    print(f"{round(remain)} liters left -> {round(for_workers)} liters per person.")