6bt4pb
5bt4p
4bt4
3bt4pb
2bt4p
hls4p
gls4
fls4pb
els4p
dls4
sur4
rur4pb
qur4p
pur4
our4pb
33q4pb
23q4p
13q4
03q4pb
z3q4p
edq4p
ddq4
cdq4pb
bdq4p
adq4