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