Enough?

SELECT * FROM gallery2 WHERE topic_id="708163" UNION SELECT * FROM gallery2 WHERE topic_id="1375872" UNION SELECT * FROM gallery2 WHERE topic_id="1354680" UNION SELECT * FROM gallery2 WHERE topic_id="1746678" UNION SELECT * FROM gallery2 WHERE topic_id="305693" UNION SELECT * FROM gallery2 WHERE topic_id="1712634" UNION SELECT * FROM gallery2 WHERE topic_id="605012" UNION SELECT * FROM gallery2 WHERE topic_id="240886" UNION SELECT * FROM gallery2 WHERE topic_id="1153992" UNION SELECT * FROM gallery2 WHERE topic_id="520801" UNION SELECT * FROM gallery2 WHERE topic_id="1745883" UNION SELECT * FROM gallery2 WHERE topic_id="1363231" UNION SELECT * FROM gallery2 WHERE topic_id="699772" UNION SELECT * FROM gallery2 WHERE topic_id="205747" UNION SELECT * FROM gallery2 WHERE topic_id="1200410" UNION SELECT * FROM gallery2 WHERE topic_id="374329"