r2draa
q2dra
p2dr
o2draa
n2dra
2bdra
1bdr
0bdraa
zbdra
ybdr
dlcr
clcraa
blcra
alcr
9kcraa
oubraa
nubra
mubr
lubraa
kubra
z3ara
y3ar
x3araa
w3ara
v3ar