SoftUniAirline

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

namespace _09_SoftuniAirline
{
    class Program
    {
        static void Main()
        {
            var numberOfFlights = int.Parse(Console.ReadLine());

            var overallProfit = 0.0;
            var averageProfit = 0.0;

            for (int i = 0; i < numberOfFlights; i++)
            {
                var adultsCount = long.Parse(Console.ReadLine());
                var adultsTicketPrice = double.Parse(Console.ReadLine());
                var youngCount = long.Parse(Console.ReadLine());
                var youngTicketsPrice = double.Parse(Console.ReadLine());
                var fuelPricePerHour = double.Parse(Console.ReadLine());
                var fuelConsumptionPerHour = double.Parse(Console.ReadLine());
                var flightDuration = int.Parse(Console.ReadLine());

                var income = (adultsCount * adultsTicketPrice) + (youngCount * youngTicketsPrice);
                var expenses = flightDuration * fuelConsumptionPerHour * fuelPricePerHour;

                var difference = Math.Abs(expenses - income);


                if (expenses > income)
                {
                    overallProfit = overallProfit - difference;
                    Console.WriteLine($"We’ve got to sell more tickets! We’ve lost {difference:f3}$.");
                }
                else
                {
                    overallProfit = overallProfit + difference;
                    Console.WriteLine($"You are ahead with {difference:f3}$.");
                }

            }

            averageProfit = overallProfit / numberOfFlights;

            Console.WriteLine($"Overall profit -> {overallProfit:f3}$.");
            Console.WriteLine($"Average profit -> {averageProfit:f3}$.");


        }
    }
}