o1q1xf
p1q1
q1q1x
r1q1xf
s1q1
dsr1
esr1x
fsr1xf
gsr1
hsr1x
2is1x
3is1xf
4is1
5is1x
6is1xf
r9s1xf
s9s1
t9s1x
u9s1xf
v9s1
g0t1
h0t1x
i0t1xf
j0t1
k0t1x