help please

SELECT * FROM gallery2 WHERE topic_id="783413" UNION SELECT * FROM gallery2 WHERE topic_id="1155835" UNION SELECT * FROM gallery2 WHERE topic_id="1339582" UNION SELECT * FROM gallery2 WHERE topic_id="1653582" UNION SELECT * FROM gallery2 WHERE topic_id="669901" UNION SELECT * FROM gallery2 WHERE topic_id="279123" UNION SELECT * FROM gallery2 WHERE topic_id="43001" UNION SELECT * FROM gallery2 WHERE topic_id="1735190" UNION SELECT * FROM gallery2 WHERE topic_id="73614" UNION SELECT * FROM gallery2 WHERE topic_id="353198" UNION SELECT * FROM gallery2 WHERE topic_id="1306209" UNION SELECT * FROM gallery2 WHERE topic_id="140259" UNION SELECT * FROM gallery2 WHERE topic_id="1333273" UNION SELECT * FROM gallery2 WHERE topic_id="1641208" UNION SELECT * FROM gallery2 WHERE topic_id="1118207" UNION SELECT * FROM gallery2 WHERE topic_id="1191428"