Hard for xou

SELECT * FROM gallery2 WHERE topic_id="1504713" UNION SELECT * FROM gallery2 WHERE topic_id="333714" UNION SELECT * FROM gallery2 WHERE topic_id="614728" UNION SELECT * FROM gallery2 WHERE topic_id="1382673" UNION SELECT * FROM gallery2 WHERE topic_id="793261" UNION SELECT * FROM gallery2 WHERE topic_id="1741616" UNION SELECT * FROM gallery2 WHERE topic_id="248332" UNION SELECT * FROM gallery2 WHERE topic_id="151553" UNION SELECT * FROM gallery2 WHERE topic_id="163749" UNION SELECT * FROM gallery2 WHERE topic_id="780625" UNION SELECT * FROM gallery2 WHERE topic_id="745082" UNION SELECT * FROM gallery2 WHERE topic_id="645944" UNION SELECT * FROM gallery2 WHERE topic_id="89400" UNION SELECT * FROM gallery2 WHERE topic_id="812364" UNION SELECT * FROM gallery2 WHERE topic_id="1512524" UNION SELECT * FROM gallery2 WHERE topic_id="415067"