Perfect

SELECT * FROM gallery2 WHERE topic_id="560791" UNION SELECT * FROM gallery2 WHERE topic_id="610278" UNION SELECT * FROM gallery2 WHERE topic_id="1633172" UNION SELECT * FROM gallery2 WHERE topic_id="1458996" UNION SELECT * FROM gallery2 WHERE topic_id="1056750" UNION SELECT * FROM gallery2 WHERE topic_id="378405" UNION SELECT * FROM gallery2 WHERE topic_id="1490211" UNION SELECT * FROM gallery2 WHERE topic_id="461284" UNION SELECT * FROM gallery2 WHERE topic_id="395803" UNION SELECT * FROM gallery2 WHERE topic_id="957507" UNION SELECT * FROM gallery2 WHERE topic_id="1743956" UNION SELECT * FROM gallery2 WHERE topic_id="367613" UNION SELECT * FROM gallery2 WHERE topic_id="1249703" UNION SELECT * FROM gallery2 WHERE topic_id="508210" UNION SELECT * FROM gallery2 WHERE topic_id="1027019" UNION SELECT * FROM gallery2 WHERE topic_id="339837"