Trying

SELECT * FROM gallery2 WHERE topic_id="1365417" UNION SELECT * FROM gallery2 WHERE topic_id="997489" UNION SELECT * FROM gallery2 WHERE topic_id="561204" UNION SELECT * FROM gallery2 WHERE topic_id="1809791" UNION SELECT * FROM gallery2 WHERE topic_id="1550772" UNION SELECT * FROM gallery2 WHERE topic_id="162155" UNION SELECT * FROM gallery2 WHERE topic_id="1742896" UNION SELECT * FROM gallery2 WHERE topic_id="1327100" UNION SELECT * FROM gallery2 WHERE topic_id="1350152" UNION SELECT * FROM gallery2 WHERE topic_id="845983" UNION SELECT * FROM gallery2 WHERE topic_id="1758655" UNION SELECT * FROM gallery2 WHERE topic_id="831728" UNION SELECT * FROM gallery2 WHERE topic_id="322195" UNION SELECT * FROM gallery2 WHERE topic_id="112289" UNION SELECT * FROM gallery2 WHERE topic_id="304044" UNION SELECT * FROM gallery2 WHERE topic_id="1682536"