x2yy1u
y2yy
z2yy1
02yy1u
12yy
mtzy
ntzy1
otzy1u
ptzy
qtzy1
bk0y1
ck0y1u
dk0y
ek0y1
fk0y1u
0a1y1u
1a1y
2a1y1
3a1y1u
4a1y
p11y
q11y1
r11y1u
s11y
t11y1