Чаши : Cups

using System;

namespace teSt7
{
    class Program
    {
        static void Main(string[] args)
        {
            var glasesNeed = int.Parse(Console.ReadLine());
            var workForce = int.Parse(Console.ReadLine());
            var days = int.Parse(Console.ReadLine());

            var dayPerHours = 8.0;
            var hourseProduseGlase =5.0 ;
            var priceGlass = 4.20;

            var totalWorkHourse = days * dayPerHours * workForce;

            var madeGlases = totalWorkHourse / hourseProduseGlase;

            var diff =  madeGlases - glasesNeed;

            diff = Math.Floor(diff);

            if (diff < 0)
            {
                diff = Math.Abs(diff);
                var finalResult = diff * priceGlass;
                Console.WriteLine($"Losses: {finalResult:f2}");
            }
            else
            {
                var finalResult = diff * priceGlass;
                Console.WriteLine($"{finalResult:f2} extra money");
            }
        }
    }
}