Cum inside pls

SELECT * FROM gallery2 WHERE topic_id="1163631" UNION SELECT * FROM gallery2 WHERE topic_id="885311" UNION SELECT * FROM gallery2 WHERE topic_id="664042" UNION SELECT * FROM gallery2 WHERE topic_id="109626" UNION SELECT * FROM gallery2 WHERE topic_id="1012769" UNION SELECT * FROM gallery2 WHERE topic_id="740948" UNION SELECT * FROM gallery2 WHERE topic_id="353885" UNION SELECT * FROM gallery2 WHERE topic_id="881411" UNION SELECT * FROM gallery2 WHERE topic_id="1140747" UNION SELECT * FROM gallery2 WHERE topic_id="1421649" UNION SELECT * FROM gallery2 WHERE topic_id="805719" UNION SELECT * FROM gallery2 WHERE topic_id="1602667" UNION SELECT * FROM gallery2 WHERE topic_id="281385" UNION SELECT * FROM gallery2 WHERE topic_id="818106" UNION SELECT * FROM gallery2 WHERE topic_id="446039" UNION SELECT * FROM gallery2 WHERE topic_id="1348121"