national court

using System;

namespace mid_exam
{
    class Program
    {
        static void Main(string[] args)
        {
            int reception1 = int.Parse(Console.ReadLine());
            int reception2 = int.Parse(Console.ReadLine());
            int reception3 = int.Parse(Console.ReadLine());
            int peopleCount = int.Parse(Console.ReadLine());

            int countHour = 0;

            while (peopleCount > 0)
            {
                int peoplePerHour = reception1 + reception2 + reception3;

                peopleCount -= peoplePerHour;
                countHour++;

                if (countHour % 4 == 0)
                {
                    countHour++;
                }

            }

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