o s-d- f - f d s d f g g-g f h g f d - o s-d- f - f d s d f g g-j h g f d s-- o s-d- f - f d s d f g g-g f h g f d - o s-d- f - f d s d f g g-j h g f d s-- h-h- h - h g f g h j j-j h g f d fdfgf- h-h- h - h g f g h j j-j h g f d s-- h-h- h - h g f g h j j-j h g f d fdfgf- h-h- h - h g f g h j j-j h g f d s