Proper position

SELECT * FROM gallery2 WHERE topic_id="423658" UNION SELECT * FROM gallery2 WHERE topic_id="1654353" UNION SELECT * FROM gallery2 WHERE topic_id="256147" UNION SELECT * FROM gallery2 WHERE topic_id="1510174" UNION SELECT * FROM gallery2 WHERE topic_id="30382" UNION SELECT * FROM gallery2 WHERE topic_id="738824" UNION SELECT * FROM gallery2 WHERE topic_id="1409713" UNION SELECT * FROM gallery2 WHERE topic_id="864866" UNION SELECT * FROM gallery2 WHERE topic_id="1752691" UNION SELECT * FROM gallery2 WHERE topic_id="199079" UNION SELECT * FROM gallery2 WHERE topic_id="409906" UNION SELECT * FROM gallery2 WHERE topic_id="366810" UNION SELECT * FROM gallery2 WHERE topic_id="996973" UNION SELECT * FROM gallery2 WHERE topic_id="818114" UNION SELECT * FROM gallery2 WHERE topic_id="1255454" UNION SELECT * FROM gallery2 WHERE topic_id="758380"