2017_September_17 Three Brothers

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

namespace Three_brothers
{
    class Program
    {
        static void Main(string[] args)
        {
            var firstBrother = double.Parse(Console.ReadLine());
            var secondBrother = double.Parse(Console.ReadLine());
            var thirdBrother = double.Parse(Console.ReadLine());
            var fishingTime = double.Parse(Console.ReadLine());

            double totalTime = 1 / (1 / firstBrother + 1 / secondBrother + 1 / thirdBrother);
            totalTime += totalTime*0.15;

            Console.WriteLine($"Cleaning time: {totalTime:f2}");

            if (totalTime >= fishingTime)
            {
                Console.WriteLine($"No, there isn't a surprise - shortage of time -> {Math.Floor(fishingTime-totalTime)*-1} hours.");
            }
            else
            {
                Console.WriteLine($"Yes, there is a surprise - time left -> {Math.Ceiling(totalTime-fishingTime)*-1} hours.");
            }


        }
    }
}