Left or right

SELECT * FROM gallery2 WHERE topic_id="1656714" UNION SELECT * FROM gallery2 WHERE topic_id="479765" UNION SELECT * FROM gallery2 WHERE topic_id="1293898" UNION SELECT * FROM gallery2 WHERE topic_id="1407326" UNION SELECT * FROM gallery2 WHERE topic_id="1395030" UNION SELECT * FROM gallery2 WHERE topic_id="311767" UNION SELECT * FROM gallery2 WHERE topic_id="707039" UNION SELECT * FROM gallery2 WHERE topic_id="1702751" UNION SELECT * FROM gallery2 WHERE topic_id="1506977" UNION SELECT * FROM gallery2 WHERE topic_id="1310560" UNION SELECT * FROM gallery2 WHERE topic_id="1595878" UNION SELECT * FROM gallery2 WHERE topic_id="797264" UNION SELECT * FROM gallery2 WHERE topic_id="392131" UNION SELECT * FROM gallery2 WHERE topic_id="277414" UNION SELECT * FROM gallery2 WHERE topic_id="997620" UNION SELECT * FROM gallery2 WHERE topic_id="81077"