h f f h d d h f f d s d h f f d-o s f d s p o h-f d o o s d f g h j h f s d s p s d s s p o h f f h d d h f f d s d h f f d-o s f d s p o h-f d o o s d f g h j h f s d s p s d s s p o f - d - f-s d s p f s s d s p s d s s p o f o o d - s d f g h j h f s d s p s d s s p o s f o s f o s f h j h g f h s f h f s d s s p o s f o s f o s f h l - j h f d-f s f d s p o f-h l h h j h h l h h f h h j h f s d s s p o f-h l h h j h j l k l j h f d - s f d s p o f-h l h h j h h l h h f h h j h f s d s s p o f-h l h h j h j l k l j h f d - s f d s p o