Front or back? [ba]

SELECT * FROM gallery2 WHERE topic_id="1685631" UNION SELECT * FROM gallery2 WHERE topic_id="753785" UNION SELECT * FROM gallery2 WHERE topic_id="30620" UNION SELECT * FROM gallery2 WHERE topic_id="897138" UNION SELECT * FROM gallery2 WHERE topic_id="679034" UNION SELECT * FROM gallery2 WHERE topic_id="372406" UNION SELECT * FROM gallery2 WHERE topic_id="1227540" UNION SELECT * FROM gallery2 WHERE topic_id="805985" UNION SELECT * FROM gallery2 WHERE topic_id="730274" UNION SELECT * FROM gallery2 WHERE topic_id="102910" UNION SELECT * FROM gallery2 WHERE topic_id="458343" UNION SELECT * FROM gallery2 WHERE topic_id="941042" UNION SELECT * FROM gallery2 WHERE topic_id="1641385" UNION SELECT * FROM gallery2 WHERE topic_id="1231457" UNION SELECT * FROM gallery2 WHERE topic_id="718601" UNION SELECT * FROM gallery2 WHERE topic_id="1719966"