SoftUniReception

using System;

namespace SoftUniReception
{
    class MainClass
    {
        public static void Main(string[] args)
        {
            int firstEmployeeAbility = int.Parse(Console.ReadLine());
            int secondEmployeeAbility = int.Parse(Console.ReadLine());
            int thirdEmployeeAbility = int.Parse(Console.ReadLine());
            int totalCountStudentsOnTheReception = int.Parse(Console.ReadLine());
            int counterForHours = 0;
            int totalHandleStudentsPerHour = firstEmployeeAbility + secondEmployeeAbility + thirdEmployeeAbility;

            while (totalCountStudentsOnTheReception > 0)
            {
                counterForHours++;
                if (counterForHours % 4 == 0 && counterForHours!=0)
                {
                    continue;
                }

                totalCountStudentsOnTheReception -= totalHandleStudentsPerHour;
            }

            Console.WriteLine($"Time needed: {counterForHours}h.");
         }

       }
    }