02. Deer of Santa

import math

days = int(input())
food = int(input())
food1_per_day = float(input()) * days
food2_per_day = float(input()) * days
food3_per_day = float(input()) * days

total_food = food1_per_day + food2_per_day + food3_per_day

if food >= total_food:
    print(f"{math.floor(food - total_food)} kilos of food left")
else:
    print(f"{math.ceil(total_food - food)} more kilos of food are needed.")