1 1 1
d
c
b
a
A a a
B b b
C c c
p c d
q p c
r p d
u p p
v q r
p b d
q p b
r p d
w p p
x q r
p a d
q p a
r p d
y p p
z q r
p A c
p p p
q d d
E p q
E E b
f p b
f f q
e E E
l
0 c C C 0 d u v
l l l
l
0 e E E 0 f w x
l l l
l
0 a A A 0 d y z
l l l
l
0 0 0 0 1 0 1 0
a a a
a
b b b
b
c c c
c
d d d
d