fun work(n, nb_colors : Int ) do
	var place = new MeetingPlace(n)
	var creatures = new Array[Creature]
	for i in [0..nb_colors[ do
		printn " " + colors[i % 3]
		creatures[i] = new Creature(place, i % 3, i)
	end
	print ""

	for c in creatures do c.async.run

	active_actors.wait

	var total = 0
	for c in creatures do
		print c.to_string
		total += c.count
	end

	print get_number(total)
	print ""

	for c in creatures do
		c.async.terminate
		c.async.wait_termination
	end
end