qsprn
pspr
osprnn
nsprn
mspr
11or
01ornn
z1orn
y1or
x1ornn
cbornn
bborn
abor
9aornn
8aorn
nknrn
mknr
lknrnn
kknrn
jknr
ytmr
xtmrnn
wtmrn
vtmr
utmrnn