Classmate IRTR

SELECT * FROM gallery2 WHERE topic_id="546312" UNION SELECT * FROM gallery2 WHERE topic_id="1646330" UNION SELECT * FROM gallery2 WHERE topic_id="50220" UNION SELECT * FROM gallery2 WHERE topic_id="1525840" UNION SELECT * FROM gallery2 WHERE topic_id="706314" UNION SELECT * FROM gallery2 WHERE topic_id="1407239" UNION SELECT * FROM gallery2 WHERE topic_id="1644950" UNION SELECT * FROM gallery2 WHERE topic_id="924950" UNION SELECT * FROM gallery2 WHERE topic_id="434538" UNION SELECT * FROM gallery2 WHERE topic_id="801167" UNION SELECT * FROM gallery2 WHERE topic_id="173783" UNION SELECT * FROM gallery2 WHERE topic_id="567189" UNION SELECT * FROM gallery2 WHERE topic_id="305550" UNION SELECT * FROM gallery2 WHERE topic_id="1383452" UNION SELECT * FROM gallery2 WHERE topic_id="1120982" UNION SELECT * FROM gallery2 WHERE topic_id="877537"