Clean cut ;)

SELECT * FROM gallery2 WHERE topic_id="1339461" UNION SELECT * FROM gallery2 WHERE topic_id="362082" UNION SELECT * FROM gallery2 WHERE topic_id="617407" UNION SELECT * FROM gallery2 WHERE topic_id="883757" UNION SELECT * FROM gallery2 WHERE topic_id="726849" UNION SELECT * FROM gallery2 WHERE topic_id="859667" UNION SELECT * FROM gallery2 WHERE topic_id="520245" UNION SELECT * FROM gallery2 WHERE topic_id="1744511" UNION SELECT * FROM gallery2 WHERE topic_id="1560112" UNION SELECT * FROM gallery2 WHERE topic_id="1358436" UNION SELECT * FROM gallery2 WHERE topic_id="330541" UNION SELECT * FROM gallery2 WHERE topic_id="1311419" UNION SELECT * FROM gallery2 WHERE topic_id="1050154" UNION SELECT * FROM gallery2 WHERE topic_id="9699" UNION SELECT * FROM gallery2 WHERE topic_id="465789" UNION SELECT * FROM gallery2 WHERE topic_id="707636"