function getArrayFromStdin() {
	$line = trim(fgets(STDIN));
	$line = str_replace(array("\r\n","\r","\n"), '', $line);
	$line = explode(" ", $line);
	return $line;
}

$s = getArrayFromStdin();

$result = ($s[0] * $s[1]) % 2 === 1 ? 'Odd' : 'Even';
echo $result;