x0srbb
w0srb
v0sr
u0srbb
t0srb
89rrb
79rr
69rrbb
59rrb
49rr
jjrr
ijrrbb
hjrrb
gjrr
fjrrbb
usqrbb
tsqrb
ssqr
rsqrbb
qsqrb
51prb
41pr
31prbb
21prb
11pr