Look closely;)

SELECT * FROM gallery2 WHERE topic_id="1277152" UNION SELECT * FROM gallery2 WHERE topic_id="331036" UNION SELECT * FROM gallery2 WHERE topic_id="878961" UNION SELECT * FROM gallery2 WHERE topic_id="339994" UNION SELECT * FROM gallery2 WHERE topic_id="279113" UNION SELECT * FROM gallery2 WHERE topic_id="1543605" UNION SELECT * FROM gallery2 WHERE topic_id="1764196" UNION SELECT * FROM gallery2 WHERE topic_id="1501444" UNION SELECT * FROM gallery2 WHERE topic_id="766407" UNION SELECT * FROM gallery2 WHERE topic_id="1283199" UNION SELECT * FROM gallery2 WHERE topic_id="1099927" UNION SELECT * FROM gallery2 WHERE topic_id="903707" UNION SELECT * FROM gallery2 WHERE topic_id="1668099" UNION SELECT * FROM gallery2 WHERE topic_id="1026800" UNION SELECT * FROM gallery2 WHERE topic_id="1537751" UNION SELECT * FROM gallery2 WHERE topic_id="574976"