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