z0ob2 y0ob x0ob27 w0ob2 v0ob

aaob 99nb27 89nb2 79nb 69nb27

ljnb27 kjnb2 jjnb ijnb27 hjnb2

wsmb2 vsmb usmb27 tsmb2 ssmb

71lb 61lb27 51lb2 41lb 31lb27