using System;

namespace VladiTest
{
    class Program
    {
        static void Main(string[] args)
        {
            double shipWidth = double.Parse(Console.ReadLine());
            double shipLength = double.Parse(Console.ReadLine());
            double shipHeight = double.Parse(Console.ReadLine());
            double averageHeight = double.Parse(Console.ReadLine());

            double shipVolume = shipHeight * shipLength * shipWidth;
            double roomVolume = (averageHeight + 0.40) * 2 * 2;

            double people = Math.Floor(shipVolume / roomVolume);

            if (people >= 3 && people <= 10)
            {
                Console.WriteLine($"The spacecraft holds {people} astronauts.");
            }
            else if (people < 3)
            {
                Console.WriteLine("The spacecraft is too small.");
            }
            else if (true)
            {
                Console.WriteLine("The spacecraft is too big.");
            }

        }
    }
}