h l-h g f-s f d x z l k h j k l k l h j g h f g d a o s f h k l-h g f-s f d x z l k h j k l x k z j l h f g d h g f s s g f s o s p s o s d f g d g j h g f s o s p s g j l j h g f s s g f s o s p s o s d f g d g j h g f h l f g j z l k h g d f s s