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

namespace Spaceship
{
    class Program
    {
        static void Main(string[] args)
        {
            double w = double.Parse(Console.ReadLine());
            double l = double.Parse(Console.ReadLine());
            double h = double.Parse(Console.ReadLine());
            double heightAustronavts = double.Parse(Console.ReadLine());

            double volumeRoket = w * l * h;
            double volumeRoom = (1.70 + 0.40) * 2 * 2;

            double placeFor = Math.Floor(volumeRoket / volumeRoom);
            if (placeFor <= 10 && placeFor >3 )
            {
                Console.WriteLine($"The spacecraft holds {placeFor} astronauts.");
            }
            else if (placeFor <= 3)
            {
                Console.WriteLine("The spacecraft is too small.");
            }
            else if(placeFor > 10)
            {
                Console.WriteLine("The spacecraft is too big.");

            }


        }
    }
}