f - a-p - s-s s - a a f-s o - u p f---- f - a s-a- f-p a s-d- f - f--- f---- j - h--- f - f - s- f---- f - a s d s- f-p a s-d- f - f--- f---f- f - d--- d-d-f-h- h - g-f d s f - a - p- d-d f--- d - s--- f-o p-s--- o p-s - d i P P-i P d d i P d-i P- f o s s-o s f- o s f-p s- f-j k-j - s-l l - z- f-x x - l j f---- j - k l-k- f-j k l-z x x---- f---- j - h--- f - f - s- f---- f-p a s d d- f-p a s-d f f---- s g g h h j j l l - z--- d-z c c-v v d - c-x z l l - k - j- j - h--- f-j k l k j- j - h--- f-j k l k j- d-j k l k j- lzx