namespace Bills
{
    using System;

    class Bills
    {
        static void Main()
        {
            int months = int.Parse(Console.ReadLine());

            double electricitySum = 0;

            for (int i = 0; i < months; i++)
            {
                double electricityBill = double.Parse(Console.ReadLine());
                electricitySum += electricityBill;
            }

            double water = months * 20;
            double internet = months * 15;
            double otherBills = (electricitySum + water + internet) * 1.2;

            double average = (electricitySum + water + internet + otherBills) / months;

            Console.WriteLine($"Electricity: {electricitySum:f2} lv");
            Console.WriteLine($"Water: {water:f2} lv");
            Console.WriteLine($"Internet: {internet:F2} lv");
            Console.WriteLine($"Other: {otherBills:f2} lv");
            Console.WriteLine($"Average: {average:f2} lv");
        }
    }
}