Harvest

import math
x_kv_m = int(input())
y_kv_m = float(input())
z_liters = int(input())
workers = int(input())

total_grapes = x_kv_m * y_kv_m
vine = (total_grapes * 0.40) / 2.5

if vine >= z_liters:
    left = round(vine - z_liters)
    per_worker = left / workers
    print(f"Good harvest this year! Total wine: {int(vine)} liters.")
    print(f"{left} liters left -> {math.floor(per_worker)} liters per person.")
else:
    need = round(z_liters - vine)
    print(f"It will be a tough winter! More {int(need)} liters wine needed.")