Firma

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

namespace Company
{
    class company
    {
        static void Main(string[] args)
        {
            var neededHours = int.Parse(Console.ReadLine());
            var days = int.Parse(Console.ReadLine());
            var employees = int.Parse(Console.ReadLine());

            var hoursReal = (days - 0.1 * days)*8; //realno vreme v 4asove za rabota
            var dopulnitelniHours = employees * 2 * days;
            var hoursRealTotal = hoursReal + dopulnitelniHours;

            if (hoursRealTotal>= neededHours)
            {
                Console.WriteLine("Yes!{0} hours left.", Math.Floor(hoursRealTotal - neededHours));
            }
            else if (hoursRealTotal<neededHours)
            {
                Console.WriteLine("Not enough time!{0} hours needed.", Math.Floor(neededHours-hoursRealTotal));
            }
        }
    }
}