I need to be used

SELECT * FROM gallery2 WHERE topic_id="778482" UNION SELECT * FROM gallery2 WHERE topic_id="705793" UNION SELECT * FROM gallery2 WHERE topic_id="419199" UNION SELECT * FROM gallery2 WHERE topic_id="1513230" UNION SELECT * FROM gallery2 WHERE topic_id="681368" UNION SELECT * FROM gallery2 WHERE topic_id="1510555" UNION SELECT * FROM gallery2 WHERE topic_id="1074922" UNION SELECT * FROM gallery2 WHERE topic_id="1793927" UNION SELECT * FROM gallery2 WHERE topic_id="1369185" UNION SELECT * FROM gallery2 WHERE topic_id="34598" UNION SELECT * FROM gallery2 WHERE topic_id="13534" UNION SELECT * FROM gallery2 WHERE topic_id="231072" UNION SELECT * FROM gallery2 WHERE topic_id="585626" UNION SELECT * FROM gallery2 WHERE topic_id="1623501" UNION SELECT * FROM gallery2 WHERE topic_id="78383" UNION SELECT * FROM gallery2 WHERE topic_id="509543"