g2y2
f2y2du
e2y2d
d2y2
c2y2du
rby2du
qby2d
pby2
oby2du
nby2d
2kx2d
1kx2
0kx2du
zkx2d
ykx2
duw2
cuw2du
buw2d
auw2
9tw2du
o3v2du
n3v2d
m3v2
l3v2du
k3v2d