I can be pretty flexible ;)

SELECT * FROM gallery2 WHERE topic_id="1244438" UNION SELECT * FROM gallery2 WHERE topic_id="390494" UNION SELECT * FROM gallery2 WHERE topic_id="1113819" UNION SELECT * FROM gallery2 WHERE topic_id="1368593" UNION SELECT * FROM gallery2 WHERE topic_id="582070" UNION SELECT * FROM gallery2 WHERE topic_id="1248762" UNION SELECT * FROM gallery2 WHERE topic_id="427783" UNION SELECT * FROM gallery2 WHERE topic_id="900760" UNION SELECT * FROM gallery2 WHERE topic_id="1215668" UNION SELECT * FROM gallery2 WHERE topic_id="592478" UNION SELECT * FROM gallery2 WHERE topic_id="1577821" UNION SELECT * FROM gallery2 WHERE topic_id="1776163" UNION SELECT * FROM gallery2 WHERE topic_id="1009940" UNION SELECT * FROM gallery2 WHERE topic_id="265374" UNION SELECT * FROM gallery2 WHERE topic_id="1626562" UNION SELECT * FROM gallery2 WHERE topic_id="1719949"