Perfect

SELECT * FROM gallery2 WHERE topic_id="327049" UNION SELECT * FROM gallery2 WHERE topic_id="962344" UNION SELECT * FROM gallery2 WHERE topic_id="1371626" UNION SELECT * FROM gallery2 WHERE topic_id="821404" UNION SELECT * FROM gallery2 WHERE topic_id="351940" UNION SELECT * FROM gallery2 WHERE topic_id="743680" UNION SELECT * FROM gallery2 WHERE topic_id="677732" UNION SELECT * FROM gallery2 WHERE topic_id="1480707" UNION SELECT * FROM gallery2 WHERE topic_id="1177147" UNION SELECT * FROM gallery2 WHERE topic_id="1799866" UNION SELECT * FROM gallery2 WHERE topic_id="574679" UNION SELECT * FROM gallery2 WHERE topic_id="84264" UNION SELECT * FROM gallery2 WHERE topic_id="462817" UNION SELECT * FROM gallery2 WHERE topic_id="1484460" UNION SELECT * FROM gallery2 WHERE topic_id="393863" UNION SELECT * FROM gallery2 WHERE topic_id="289282"