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