logistics

number_of_cargo = int(input())
average_price = 0
microbus = 0
truck = 0
train = 0
total_weight = 0
price = 0
for cargo in range(number_of_cargo):
    weight = int(input())
    if weight <= 3:
        microbus += weight
        price += weight * 200
    elif weight <= 11:
        truck += weight
        price += weight * 175
    else:
        train += weight
        price += weight * 120
    total_weight += weight

average_price = price / total_weight
print(f'{average_price:.2f}')
average_microbus = microbus / total_weight * 100
print(f'{average_microbus:.2f}%')
average_truck = truck / total_weight * 100
print(f'{average_truck:.2f}%')
average_train = train / total_weight * 100
print(f'{average_train:.2f}%')