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