$B $BI>2A7k2L(B $B>e$X(B: $B?M $BLa$k(B: $BI>2A   $BL\

$B@52rN((B

$B1QJ8$NI>2A7k2L$r$b$H$K!$0J2<$N#2DL$j$N@52rN($r;;=P$9$k!%(B

1. $BA4$F$NF~NOJ8$KBP$7$FCj=P$5$l$?A4$F$NJ87?%Q%?!<%s$K$D$$$F!$(BA$B$*$h$S(BB$B$HI>2A$5$l$?J87?%Q%?!<%s$,B8:_$9$k3d9g!JJ87?@52r4^M-N(!$0J2<(B$P1$$B!K(B
2. $BF~NOJ8$KBP$7$F!$(BA$B$*$h$S(BB$B$HI>2A$5$l$?J87?%Q%?!<%s$,#1$D$G$bB8:_$9$k3d9g!JE,9gJ87?@52r4^M-N(!$0J2<(B$P2$$B!K(B

$P1$$B$*$h$S(B$P2$$B$O0J2<$N<0$G$=$l$>$l5a$a$k!%(B

$$\begin{eqnarray*} P1 & = & \frac{A, B$B$HI>2A$5$l$?%Q%?!<%s?t(B}{$BCj=P$5$l$?A4%Q%?!<(B... ...$Bs$r;}$DJ8?t}(B{$B<+8J%Q%?!<%s0J30$N%Q%?!<%s$,#1$D0J>eCj=P$5$l$?J8?t(B} \end{eqnarray*}$$