Hard

SELECT * FROM gallery2 WHERE topic_id="637364" UNION SELECT * FROM gallery2 WHERE topic_id="635063" UNION SELECT * FROM gallery2 WHERE topic_id="455648" UNION SELECT * FROM gallery2 WHERE topic_id="835522" UNION SELECT * FROM gallery2 WHERE topic_id="1091146" UNION SELECT * FROM gallery2 WHERE topic_id="330964" UNION SELECT * FROM gallery2 WHERE topic_id="1632976" UNION SELECT * FROM gallery2 WHERE topic_id="1213170" UNION SELECT * FROM gallery2 WHERE topic_id="316946" UNION SELECT * FROM gallery2 WHERE topic_id="158881" UNION SELECT * FROM gallery2 WHERE topic_id="853802" UNION SELECT * FROM gallery2 WHERE topic_id="84986" UNION SELECT * FROM gallery2 WHERE topic_id="259395" UNION SELECT * FROM gallery2 WHERE topic_id="1656721" UNION SELECT * FROM gallery2 WHERE topic_id="718074" UNION SELECT * FROM gallery2 WHERE topic_id="1072390"