l k j h f-h-f-h- f-h-l k j h f-h-f-h- f-h-l k j h f-h-f-h- f-h-l k j h f-h-f-h- f---- j-h h f h d- s--f h d- s-s s f d d d d d d s f-s- j-h h f h d- s---- s s d f-d s- s s d f h d s - s d f d s d f d s d f h d s - s d f d s d f d s d f h d s - s d f d s d f d s d f h d s j-h h f h d- s--f h d- s-s s f d d d d d d s f-s- j-j k l k j- h---- j-h h f h d- s--f h d- s-s s f d d d d d d s f-s- j-h h f h d- s---- j-h h f h d- s