Hi there :)

SELECT * FROM gallery2 WHERE topic_id="1350537" UNION SELECT * FROM gallery2 WHERE topic_id="33434" UNION SELECT * FROM gallery2 WHERE topic_id="528557" UNION SELECT * FROM gallery2 WHERE topic_id="819904" UNION SELECT * FROM gallery2 WHERE topic_id="1112788" UNION SELECT * FROM gallery2 WHERE topic_id="1127523" UNION SELECT * FROM gallery2 WHERE topic_id="713283" UNION SELECT * FROM gallery2 WHERE topic_id="780526" UNION SELECT * FROM gallery2 WHERE topic_id="1692632" UNION SELECT * FROM gallery2 WHERE topic_id="733388" UNION SELECT * FROM gallery2 WHERE topic_id="351756" UNION SELECT * FROM gallery2 WHERE topic_id="1100569" UNION SELECT * FROM gallery2 WHERE topic_id="1547256" UNION SELECT * FROM gallery2 WHERE topic_id="1660362" UNION SELECT * FROM gallery2 WHERE topic_id="1525037" UNION SELECT * FROM gallery2 WHERE topic_id="643700"