SoftUni Airline

using System;
using System.Collections.Generic;
using System.Diagnostics.Eventing.Reader;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

class Program
{
    static void Main(string[] args)
    {
        int numberOfFly = int.Parse(Console.ReadLine());

        int adultPas = int.Parse(Console.ReadLine());
        decimal adultTicketPrice = decimal.Parse(Console.ReadLine());
        int youngPas = int.Parse(Console.ReadLine());
        decimal youngTicketPrice = decimal.Parse(Console.ReadLine());
        decimal fuelPricePerHour = decimal.Parse(Console.ReadLine());
        double fuelLess = double.Parse(Console.ReadLine());
        double duration = double.Parse(Console.ReadLine());

        decimal myIncome = ((adultPas*adultTicketPrice) + (youngPas*youngTicketPrice));
        decimal expenses = (fuelPricePerHour*(decimal) (fuelLess*duration));

        decimal profit = (decimal) (myIncome - expenses);


        if (myIncome >= expenses)
        {
            Console.WriteLine($"You are ahead with {profit:f3}$.");
        }
        else
        {
            Console.WriteLine($"We've got to sell more tickets! We've lost {profit:f3}$.");
        }
    }
}