x1mrf2
y1mr
z1mrf
01mrf2
11mr
msnr
nsnrf
osnrf2
psnr
qsnrf
bjorf
cjorf2
djor
ejorf
fjorf2
09orf2
19or
29orf
39orf2
49or
p0pr
q0prf
r0prf2
s0pr
t0prf