using System;

namespace Bills
{
    class Program
    {
        static void Main(string[] args)
        {
            int months = int.Parse(Console.ReadLine());
            double electricityBills = 0;
            double waterBills = 0;
            double internetBills = 0;
            double othersBills = 0;
            double water = 20;
            double internet = 15;
            double otherBill = 0;

            for (int i = 1; i <= months; i++)
            {
                double electricityBill = double.Parse(Console.ReadLine());
                electricityBills += electricityBill;
                waterBills = months * water;
                internetBills = months * internet;
                othersBills = (electricityBill + water + internet) + ((electricityBill + water + internet) * 0.2);
                otherBill =+ othersBills;
            }
            double average = (electricityBills + waterBills + internetBills + othersBills) / months;
            Console.WriteLine($"Electricity: {electricityBills:f2} lv");
            Console.WriteLine($"Water: {waterBills:f2} lv");
            Console.WriteLine($"Internet: {internetBills:f2} lv");
            Console.WriteLine($"Other: {othersBills:f2} lv");
            Console.WriteLine($"Average: {average:f2} lv");
        }
    }
}