s s f h-f h f ghg f o f d s p s---s d O d---P O- d-a-f h f s k l k j-f s p d-f d-s-p d-j h s f d- s g j l-j z l j-h-g-d- d g H l-H z l Z-z-l-d D f h k z-k h f s s f l-h g f d I f d-s p- d O f d d s o- s s f h-f h f ghg f o f d s p s---s d O d---P O- d-a-f h f s k l k j-f s p d-f d-s-p d-j h s f d- s g j l-j z l j-h-g-d- d g H l-H z l Z-z-l-d D f h k z-k h f s s f l-h g f d I f d-s p- d O f d d s o- s s f h l-g f d I f d d s a- s--d