After

SELECT * FROM gallery2 WHERE topic_id="1524619" UNION SELECT * FROM gallery2 WHERE topic_id="1091817" UNION SELECT * FROM gallery2 WHERE topic_id="413145" UNION SELECT * FROM gallery2 WHERE topic_id="1586256" UNION SELECT * FROM gallery2 WHERE topic_id="1589956" UNION SELECT * FROM gallery2 WHERE topic_id="358135" UNION SELECT * FROM gallery2 WHERE topic_id="1133963" UNION SELECT * FROM gallery2 WHERE topic_id="1557652" UNION SELECT * FROM gallery2 WHERE topic_id="1281724" UNION SELECT * FROM gallery2 WHERE topic_id="1775485" UNION SELECT * FROM gallery2 WHERE topic_id="1601340" UNION SELECT * FROM gallery2 WHERE topic_id="798171" UNION SELECT * FROM gallery2 WHERE topic_id="236780" UNION SELECT * FROM gallery2 WHERE topic_id="716846" UNION SELECT * FROM gallery2 WHERE topic_id="918128" UNION SELECT * FROM gallery2 WHERE topic_id="41440"