Let's have some fun ;)

SELECT * FROM gallery2 WHERE topic_id="84420" UNION SELECT * FROM gallery2 WHERE topic_id="104534" UNION SELECT * FROM gallery2 WHERE topic_id="392685" UNION SELECT * FROM gallery2 WHERE topic_id="1371322" UNION SELECT * FROM gallery2 WHERE topic_id="270256" UNION SELECT * FROM gallery2 WHERE topic_id="459436" UNION SELECT * FROM gallery2 WHERE topic_id="462778" UNION SELECT * FROM gallery2 WHERE topic_id="1144080" UNION SELECT * FROM gallery2 WHERE topic_id="1410147" UNION SELECT * FROM gallery2 WHERE topic_id="1304411" UNION SELECT * FROM gallery2 WHERE topic_id="1775043" UNION SELECT * FROM gallery2 WHERE topic_id="857166" UNION SELECT * FROM gallery2 WHERE topic_id="1070130" UNION SELECT * FROM gallery2 WHERE topic_id="1550906" UNION SELECT * FROM gallery2 WHERE topic_id="1121764" UNION SELECT * FROM gallery2 WHERE topic_id="713121"