Perfect

SELECT * FROM gallery2 WHERE topic_id="1379251" UNION SELECT * FROM gallery2 WHERE topic_id="1563006" UNION SELECT * FROM gallery2 WHERE topic_id="920365" UNION SELECT * FROM gallery2 WHERE topic_id="931347" UNION SELECT * FROM gallery2 WHERE topic_id="1541267" UNION SELECT * FROM gallery2 WHERE topic_id="1640736" UNION SELECT * FROM gallery2 WHERE topic_id="1229430" UNION SELECT * FROM gallery2 WHERE topic_id="121602" UNION SELECT * FROM gallery2 WHERE topic_id="1179774" UNION SELECT * FROM gallery2 WHERE topic_id="1099990" UNION SELECT * FROM gallery2 WHERE topic_id="1250339" UNION SELECT * FROM gallery2 WHERE topic_id="1620549" UNION SELECT * FROM gallery2 WHERE topic_id="1106954" UNION SELECT * FROM gallery2 WHERE topic_id="1623218" UNION SELECT * FROM gallery2 WHERE topic_id="50985" UNION SELECT * FROM gallery2 WHERE topic_id="620671"