Monster challenge

SELECT * FROM gallery2 WHERE topic_id="12516" UNION SELECT * FROM gallery2 WHERE topic_id="1442657" UNION SELECT * FROM gallery2 WHERE topic_id="755628" UNION SELECT * FROM gallery2 WHERE topic_id="1818638" UNION SELECT * FROM gallery2 WHERE topic_id="1655572" UNION SELECT * FROM gallery2 WHERE topic_id="41311" UNION SELECT * FROM gallery2 WHERE topic_id="22135" UNION SELECT * FROM gallery2 WHERE topic_id="1114561" UNION SELECT * FROM gallery2 WHERE topic_id="367560" UNION SELECT * FROM gallery2 WHERE topic_id="377137" UNION SELECT * FROM gallery2 WHERE topic_id="1307807" UNION SELECT * FROM gallery2 WHERE topic_id="793696" UNION SELECT * FROM gallery2 WHERE topic_id="604045" UNION SELECT * FROM gallery2 WHERE topic_id="302039" UNION SELECT * FROM gallery2 WHERE topic_id="1261154" UNION SELECT * FROM gallery2 WHERE topic_id="658082"