l80br0 m80b n80br o80br0 p80b

az1b bz1br cz1br0 dz1b ez1br

zp2br 0p2br0 1p2b 2p2br 3p2br0

og3br0 pg3b qg3br rg3br0 sg3b

d73b e73br f73br0 g73b h73br