your mouth looks a bit lonely, maybe this will do the trick

SELECT * FROM gallery2 WHERE topic_id="144982" UNION SELECT * FROM gallery2 WHERE topic_id="1021168" UNION SELECT * FROM gallery2 WHERE topic_id="17188" UNION SELECT * FROM gallery2 WHERE topic_id="266992" UNION SELECT * FROM gallery2 WHERE topic_id="1233486" UNION SELECT * FROM gallery2 WHERE topic_id="738392" UNION SELECT * FROM gallery2 WHERE topic_id="1415161" UNION SELECT * FROM gallery2 WHERE topic_id="1344167" UNION SELECT * FROM gallery2 WHERE topic_id="1306786" UNION SELECT * FROM gallery2 WHERE topic_id="1129295" UNION SELECT * FROM gallery2 WHERE topic_id="1145630" UNION SELECT * FROM gallery2 WHERE topic_id="639504" UNION SELECT * FROM gallery2 WHERE topic_id="1696697" UNION SELECT * FROM gallery2 WHERE topic_id="1619571" UNION SELECT * FROM gallery2 WHERE topic_id="611388" UNION SELECT * FROM gallery2 WHERE topic_id="998310"