s s 0 f s 0 g x h x x s x h x 0 s x h 0 x f g x g g f x g s x s s g x h f x g x f s x s 0 k 0 s k 0 0 s s s 0 k s 0 k s 0 s 0 s s s s s s s s s s s 0 k s s 0 k s s 0 s s s s s s s s s 0 h k x g x k s x s 1 0 0 f 1 g 1 h 2 k 1 FULL 4.trs