lost_fights = int(input())
price_helmet = float(input())
price_sword = float(input())
price_sheild = float(input())
price_armor = float(input())

def price_braked_item(lost_fights, count, price):
    result = (lost_fights // count) * price
    return result

total_price = price_braked_item(lost_fights, 2, price_helmet) + \
              price_braked_item(lost_fights, 3, price_sword) + \
              price_braked_item(lost_fights, 6, price_sheild) + \
              price_braked_item(lost_fights, 12, price_armor)

print(f'Gladiator expenses: {total_price:.2f} aureus')