o s s s f d-s f- s--- o s s s f d-s g p---- g g g-f h-g f o s-o s-f h o g-f d-f s o---- w o t t u y-t u- t--- w t t t u o-t i p---- i i i-u o-i u o t-w t-u o o i-u y-u t o---- 5 o 8 8 0 9-8 0- 8--- 5 8 8 8 0 o-8 q p---- q q q-0 w-q 0 o 8-5 8-0 w o q-0 9-0 8 o