wb1un
xb1und
yb1u
zb1un
0b1und
l21und
m21u
n21un
o21und
p21u
at2u
bt2un
ct2und
dt2u
et2un
zj3un
0j3und
1j3u
2j3un
3j3und
oa4und
pa4u
qa4un
ra4und
sa4u