o u o o u o p i p p i p o u o o u o f d s p s p o u o o u o p i p p o p s d f h f d f d s p s p o u o o u o p i p p i p o u o o u o f d s p s p o u o o u o p i p p o p s d f h f d f d s p s p s d f h-h j h f h f d s d f h f d f d s p o p s d f h-h j h f h-f g - f h f d s p p o p s d f h-h j h f h f d s d f h f d f d s p o p s d f h-h j h f h-f g - f h f d s p p o p s-f f d f f d f f d f s-f f d f d s p p o p s-f f d f f d f f d s g - f h f d s p p o p s-f f d f f d f f d f s-f f d f d s p p o p s-f f d f f d f f d s g - f h f d s p p o u o s s f s s d s d f s p o s s f s s d s p p o u o s s f s s d s d f d s g - f h f d s p p o u o s s f s s d s d f s p o s s f s s d s p p o u o s s f s s d s d f d s g - f h f d s p p o u o