Perfect

SELECT * FROM gallery2 WHERE topic_id="221100" UNION SELECT * FROM gallery2 WHERE topic_id="1294625" UNION SELECT * FROM gallery2 WHERE topic_id="1826217" UNION SELECT * FROM gallery2 WHERE topic_id="808783" UNION SELECT * FROM gallery2 WHERE topic_id="949664" UNION SELECT * FROM gallery2 WHERE topic_id="1306727" UNION SELECT * FROM gallery2 WHERE topic_id="16202" UNION SELECT * FROM gallery2 WHERE topic_id="1193471" UNION SELECT * FROM gallery2 WHERE topic_id="729398" UNION SELECT * FROM gallery2 WHERE topic_id="248425" UNION SELECT * FROM gallery2 WHERE topic_id="1596158" UNION SELECT * FROM gallery2 WHERE topic_id="1071907" UNION SELECT * FROM gallery2 WHERE topic_id="600102" UNION SELECT * FROM gallery2 WHERE topic_id="466929" UNION SELECT * FROM gallery2 WHERE topic_id="56588" UNION SELECT * FROM gallery2 WHERE topic_id="1297680"