P827
3xu1 S08yz:0←4(1u←w s2:
i(#aVKclB→$@ oaLDQVKuEM x$#@(AU,@ C—$K-
—$AUPS:IcJPU@fN-KP,@@ N→fPK$jJB@@
@@x(#
o-—NYZJ-SKa@$CjH+t½LP@ e½VB+$aTB@—e+H—T