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