d anti-wrinkle
d d c b a h h f h f f g g h h h h
a a a
b b b b b a a a a a a h h h g g g
f e e
d d c b a a h g f e d c b h
g f e
c b a f c g c h d h d h d h e
a e h
d h d h d g c g b f b e a d h
c g b
f a e d h d g h d h c g c f b
f a e
h d g b f a e h c f a e g h c
f b e
h c f a e h c f h c f a d g a
d g b
