xxrb1n
yxrb
zxrb1
0xrb1n
1xrb
mosb
nosb1
oosb1n
posb
qosb1
bftb1
cftb1n
dftb
eftb1
fftb1n
05tb1n
15tb
25tb1
35tb1n
45tb
pwub
qwub1
rwub1n
swub
twub1