81yt1
91yt1z
a2yt
b2yt1
c2yt1z
xszt1z
yszt
zszt1
0szt1z
1szt
mj0t
nj0t1
oj0t1z
pj0t
qj0t1
ba1t1
ca1t1z
da1t
ea1t1
fa1t1z
001t1z
101t
201t1
301t1z
401t