ox1tk1
px1t
qx1tk
rx1tk1
sx1t
do2t
eo2tk
fo2tk1
go2t
ho2tk
2e3tk
3e3tk1
4e3t
5e3tk
6e3tk1
r53tk1
s53t
t53tk
u53tk1
v53t
gw4t
hw4tk
iw4tk1
jw4t
kw4tk