vfxi
wfxi2
xfxi2z
yfxi
zfxi2
k6xi2
l6xi2z
m6xi
n6xi2
o6xi2z
9wyi2z
axyi
bxyi2
cxyi2z
dxyi
ynzi
znzi2
0nzi2z
1nzi
2nzi2
ne0i2
oe0i2z
pe0i
qe0i2
re0i2z