# File default/adder.rb, line 137
def task
   world = RobotWorld.instance()
   world.read_world("../worlds/fig7-3.kwld")
   world.place_beepers(3, 4, 7)
   world.show_world()
   tony = Adder.new(5)
   tony.gatherHelpers()
   tony.add_all()
   tony.move_away()
   world.show_world()
end