e NCTF
e d b h g e d b h c b h g e d b h
f e c
a g f d a g f d a g a a g d d d d
c c b
b a h h g f e e d c b a h g
f e d
b a h g e d b a h f d c a g f
d b h
f d c a f d b h f d a d a e a
f b f
h d h c g c f b e a d h c f b
e h c
f b e h c f a d g b e h h d g
b e h
c f a d f a d g a d g a d g a
d f h
