Submission #3267436

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Source Code Expand

<?php
fscanf(STDIN, "%s %s", $n, $m);
if ($n > 1 && $m > 1) {
	$x = ($n - 2) * ($m - 2);
} elseif ($n * $m == 1) {
	$x = 1;
} else {
	$x = max($n, $m) - 2;
}
echo $x;

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