Spaceship

s = float(input())
d = float(input())
v = float(input())
sv = float(input())

ship = s * d * v
astronaut = (sv + 0.4) * 2 * 2
team = int(ship / astronaut)

if team < 3:
    print("The spacecraft is too small.")
elif team > 10:
    print("The spacecraft is too big.")
else:
    print(f'The spacecraft holds {team} astronauts.')