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\title{1993$@G/F|K\?t3X%*%j%s%T%C%/M=A*(J}
\author{$@9q:]?t3X%*%j%s%T%C%/F|K\0Q0w2q(J}
\date{}
\begin{document}
\maketitle

\setlength{\baselineskip}{13pt}

\vspace*{0.5em}
\centerline{\bf \Large $@Ld(J \ \ $@Bj(J\footnote{Copyright \copyright 1993
 by Mathematical Olympiad Foundation of Japan \\
$@Cx:n8"$O?t3X%*%j%s%T%C%/:bCD(J$@$K5"B0$7$^$9(J.}}
\vspace{1em}
\noindent $\dagger$ 1993$@G/(J 1$@7n(J 15$@F|(J $@;n83;~4V(J 3$@;~4V(J 12$@Ld(J

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--
1993$@G/(J01$@7n(J15$@F|(J($@6b(J)
--------
$@4];3D>>;!wE}7W?tM}8&5f=j(J
maruyama@ism.ac.jp