Left or right

SELECT * FROM gallery2 WHERE topic_id="104595" UNION SELECT * FROM gallery2 WHERE topic_id="1286566" UNION SELECT * FROM gallery2 WHERE topic_id="1063039" UNION SELECT * FROM gallery2 WHERE topic_id="1587640" UNION SELECT * FROM gallery2 WHERE topic_id="909412" UNION SELECT * FROM gallery2 WHERE topic_id="249849" UNION SELECT * FROM gallery2 WHERE topic_id="533005" UNION SELECT * FROM gallery2 WHERE topic_id="1647197" UNION SELECT * FROM gallery2 WHERE topic_id="575357" UNION SELECT * FROM gallery2 WHERE topic_id="1713845" UNION SELECT * FROM gallery2 WHERE topic_id="997518" UNION SELECT * FROM gallery2 WHERE topic_id="1491585" UNION SELECT * FROM gallery2 WHERE topic_id="1425781" UNION SELECT * FROM gallery2 WHERE topic_id="261636" UNION SELECT * FROM gallery2 WHERE topic_id="827148" UNION SELECT * FROM gallery2 WHERE topic_id="1242427"