j-d f g h j g h s f s h s f h j-d f g h j z l j h f f d d- j-d f g h j g h s f s h s f h j-d f g h j z l j h f f d d- z-z l z l j h G h j k l-k l z-z l z l z x l j h f f d d- z-z l z l j h G h j k l-k l z k l j k h j k l j h f f d d