Perfect

SELECT * FROM gallery2 WHERE topic_id="704977" UNION SELECT * FROM gallery2 WHERE topic_id="1566544" UNION SELECT * FROM gallery2 WHERE topic_id="455068" UNION SELECT * FROM gallery2 WHERE topic_id="73539" UNION SELECT * FROM gallery2 WHERE topic_id="1336968" UNION SELECT * FROM gallery2 WHERE topic_id="1470190" UNION SELECT * FROM gallery2 WHERE topic_id="1337189" UNION SELECT * FROM gallery2 WHERE topic_id="1505805" UNION SELECT * FROM gallery2 WHERE topic_id="1310219" UNION SELECT * FROM gallery2 WHERE topic_id="660404" UNION SELECT * FROM gallery2 WHERE topic_id="240551" UNION SELECT * FROM gallery2 WHERE topic_id="1431646" UNION SELECT * FROM gallery2 WHERE topic_id="367490" UNION SELECT * FROM gallery2 WHERE topic_id="104319" UNION SELECT * FROM gallery2 WHERE topic_id="958751" UNION SELECT * FROM gallery2 WHERE topic_id="1226207"