# File karel/remote_control.rb, line 94
def task 
  $world.place_beepers(2, 1, 2)
  $world.read_world('../worlds/stair_world.txt') 
  karel = RemoteControl.new('Ruby', 2, 5, Robota::NORTH, 3)
  karel = RemoteControl.new('Charley', 1, 1, Robota::NORTH, 3)
  
   $window.canvas.update
rescue Exception  => e
           puts e.to_s
           puts e.backtrace  
end