using System;

namespace _06.Bills
{
    class Bills
    {
        static void Main(string[] args)
        {
            int months = int.Parse(Console.ReadLine());

            double waterBill = 20;
            double internetBill = 15;
            double otherBills = 0;

            double waterBillCnt = 0;
            double internetBillCnt = 0;
            double electricityBillCnt = 0;
            double otherBillsCnt = 0;

            for (int i = 1; i <= months; i++)
            {
                double electricityBill = double.Parse(Console.ReadLine());

                electricityBillCnt += electricityBill;
                waterBillCnt += waterBill;
                internetBillCnt += internetBill;
                otherBills = (electricityBill + waterBill + internetBill) * 1.2;
                otherBillsCnt += otherBills;
            }

            double avg = (electricityBillCnt + waterBillCnt + internetBillCnt + otherBillsCnt) / months;

            Console.WriteLine("Electricity: " + $"{electricityBillCnt:f2}" + " lv");
            Console.WriteLine("Water: " + $"{waterBillCnt:f2}" + " lv");
            Console.WriteLine("Internet: " + $"{internetBillCnt:f2}" + " lv");
            Console.WriteLine("Other: " + $"{otherBillsCnt:f2}" + " lv");
            Console.WriteLine("Average: " + $"{avg:f2}" + " lv");
        }
    }
}