f h g f-df sdfdfgdfdfs f h g f-d sdfdfgh h h d h g f-df sdfdfgdfdfs f h g f-d sdf d s-fd s a s d-fd sdfdfgdfs fd s a s d-d sdf d s-fd s a s d-fd sdfdfgdfs fd s a s d-d sdf d s - f h g s