using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Exam_Family_House
{
    class Program
    {
        static void Main(string[] args)
        {
            int months = int.Parse(Console.ReadLine());
            double sumElectricity = 0;

            for (int i = 0; i < months; i++)
            {
                sumElectricity += double.Parse(Console.ReadLine());
            }
            double sumOther = (sumElectricity + months * 35) * 1.20;

            Console.WriteLine($"Electricity: {sumElectricity:F2} lv");
            Console.WriteLine($"Water: {months * 20:F2} lv");
            Console.WriteLine($"Internet: {months * 15:F2} lv");
            Console.WriteLine($"Other: {sumOther:F2} lv");
            Console.WriteLine($"Average: {(sumElectricity + sumOther + months * 35) / months:F2} lv");
        }
    }
}