nbqbp
obqbpn
pbqb
qbqbp
rbqbpn
c2qbpn
d2qb
e2qbp
f2qbpn
g2qb
1srb
2srbp
3srbpn
4srb
5srbp
qjsbp
rjsbpn
sjsb
tjsbp
ujsbpn
fatbpn
gatb
hatbp
iatbpn
jatb