Beginner gape :)

SELECT * FROM gallery2 WHERE topic_id="1543313" UNION SELECT * FROM gallery2 WHERE topic_id="312174" UNION SELECT * FROM gallery2 WHERE topic_id="341818" UNION SELECT * FROM gallery2 WHERE topic_id="1487785" UNION SELECT * FROM gallery2 WHERE topic_id="597723" UNION SELECT * FROM gallery2 WHERE topic_id="701768" UNION SELECT * FROM gallery2 WHERE topic_id="1567282" UNION SELECT * FROM gallery2 WHERE topic_id="846863" UNION SELECT * FROM gallery2 WHERE topic_id="1670549" UNION SELECT * FROM gallery2 WHERE topic_id="452450" UNION SELECT * FROM gallery2 WHERE topic_id="1556364" UNION SELECT * FROM gallery2 WHERE topic_id="1436380" UNION SELECT * FROM gallery2 WHERE topic_id="1270379" UNION SELECT * FROM gallery2 WHERE topic_id="1388110" UNION SELECT * FROM gallery2 WHERE topic_id="510834" UNION SELECT * FROM gallery2 WHERE topic_id="174866"