06. Bills

month = int(input())
electricity = 0
water = month * 20
internet = month * 15
other = 0

for i in range(0, month):
    current_bill = float(input())
    electricity += current_bill
    other += (current_bill + 35) * 1.2

average = (electricity + water + internet + other) / month
print(f'Electricity: {electricity:.2f} lv')
print(f'Water: {water:.2f} lv')
print(f'Internet: {internet:.2f} lv')
print(f'Other: {other:.2f} lv')
print(f'Average: {average:.2f} lv')