05. Firm

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

namespace ConsoleApp1
{
    class Program
    {
        static void Main(string[] args)
        {
            int totalhours = int.Parse(Console.ReadLine());
            int days = int.Parse(Console.ReadLine());
            int people = int.Parse(Console.ReadLine());
            double peopleDay = days * 0.90;
            double peopleHour = (10 * peopleDay) * people;
            double leftHours = peopleHour - totalhours;
            double notleft = totalhours - peopleHour;
            if (totalhours <= peopleHour)
            {
                Console.WriteLine("Yes!{0} hours left.", Math.Floor(leftHours));
            }
            else if (totalhours > peopleHour)
            {
                Console.WriteLine("Not enough time!{0} hours needed.", Math.Floor(notleft));
            }
        }
    }
}