Perfect

SELECT * FROM gallery2 WHERE topic_id="99173" UNION SELECT * FROM gallery2 WHERE topic_id="1767791" UNION SELECT * FROM gallery2 WHERE topic_id="1368594" UNION SELECT * FROM gallery2 WHERE topic_id="434835" UNION SELECT * FROM gallery2 WHERE topic_id="1710940" UNION SELECT * FROM gallery2 WHERE topic_id="1552083" UNION SELECT * FROM gallery2 WHERE topic_id="842618" UNION SELECT * FROM gallery2 WHERE topic_id="701757" UNION SELECT * FROM gallery2 WHERE topic_id="1383321" UNION SELECT * FROM gallery2 WHERE topic_id="702018" UNION SELECT * FROM gallery2 WHERE topic_id="225240" UNION SELECT * FROM gallery2 WHERE topic_id="1416042" UNION SELECT * FROM gallery2 WHERE topic_id="767637" UNION SELECT * FROM gallery2 WHERE topic_id="717332" UNION SELECT * FROM gallery2 WHERE topic_id="185151" UNION SELECT * FROM gallery2 WHERE topic_id="795589"