s-s-f-f-j--j-j-f-f-h-- h-h-s-s-g--g--g---- s-s-g-g-j--j-j-h-h-g-- g-f-h-h-f---- s-s-f-f-h--h-h-g-g-f-- f-f-h-h-d---- a-a-d-d-h--h-g-g-f-g-- g-d-s-a-s--j-h-j-h-f-- j-h-j-h-f--h-h-h-h-l-- l-l-l-l-J--J-J-J-J-j---- j-j-j-j-l-- l-l-k-k-j--j-j-l-l-h---- f-f-h-h-k-- k-k-j-j-h--h-h-k-k-g---- d-d-g-g-k-- k-k-j-h-j--h-h-j-j-f---- k- h-k-j---j-g-j-h--- h-f-h-g-d-g-f---- k-h-k-j-g-j-h-f-h-g-d-g- t o f l