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

namespace expenses
{
    class Program
    {
        static void Main(string[] args)
        {
            var n = int.Parse(Console.ReadLine());
            double Electricity = 0;
            double Water = 0;
            double Internet = 0;
            double Other = 0;
            double Average = 0;
            double months = 0;
            for (int i = 0; i < n; i++)
            {
                months = double.Parse(Console.ReadLine());
                Electricity++;


            }
            Electricity = Electricity + Electricity;
            //Console.WriteLine(Electricity);
            Water = months * 20;
            Internet = months * 15;
            Other = (Electricity + 20 + 15) * 1.20;
            Average = (Electricity + Water + Other) / months;
            Console.WriteLine($"Electricity:{Electricity:f2}");
            Console.WriteLine($"Water:{Water:f2}");
            Console.WriteLine($"Internet:{Internet:f2}");
            Console.WriteLine($"Average{Average:f2}");



        }
    }
}