фирма : Firm

using System;

namespace dwdwdwdwDD
{
    class Program
    {
        static void Main(string[] args)
        {
            var hoursNeed = int.Parse(Console.ReadLine());
            var days = int.Parse(Console.ReadLine());
            var employees = int.Parse(Console.ReadLine());

            var hoursEmployees = (employees * (8 + 2) * days) - ((employees * (8 + 2) * days) * 0.10);
            var difference = Math.Abs(hoursNeed - hoursEmployees);

            if (hoursNeed <= hoursEmployees)
            {
                Console.WriteLine($"Yes!{difference} hours left.");
            }
            else if (hoursNeed > hoursEmployees)
            {
                Console.WriteLine($"Not enough time!{difference} hours needed.");
            }
        }
    }
}