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