Hii ;)

SELECT * FROM gallery2 WHERE topic_id="396042" UNION SELECT * FROM gallery2 WHERE topic_id="1443557" UNION SELECT * FROM gallery2 WHERE topic_id="621377" UNION SELECT * FROM gallery2 WHERE topic_id="1796346" UNION SELECT * FROM gallery2 WHERE topic_id="1772476" UNION SELECT * FROM gallery2 WHERE topic_id="29578" UNION SELECT * FROM gallery2 WHERE topic_id="1634477" UNION SELECT * FROM gallery2 WHERE topic_id="1625864" UNION SELECT * FROM gallery2 WHERE topic_id="1465683" UNION SELECT * FROM gallery2 WHERE topic_id="1213661" UNION SELECT * FROM gallery2 WHERE topic_id="158501" UNION SELECT * FROM gallery2 WHERE topic_id="858589" UNION SELECT * FROM gallery2 WHERE topic_id="1689216" UNION SELECT * FROM gallery2 WHERE topic_id="91942" UNION SELECT * FROM gallery2 WHERE topic_id="1251599" UNION SELECT * FROM gallery2 WHERE topic_id="1650957"