I need help!

SELECT * FROM gallery2 WHERE topic_id="1218538" UNION SELECT * FROM gallery2 WHERE topic_id="976836" UNION SELECT * FROM gallery2 WHERE topic_id="1192848" UNION SELECT * FROM gallery2 WHERE topic_id="594057" UNION SELECT * FROM gallery2 WHERE topic_id="1141592" UNION SELECT * FROM gallery2 WHERE topic_id="314731" UNION SELECT * FROM gallery2 WHERE topic_id="770660" UNION SELECT * FROM gallery2 WHERE topic_id="887569" UNION SELECT * FROM gallery2 WHERE topic_id="791038" UNION SELECT * FROM gallery2 WHERE topic_id="718601" UNION SELECT * FROM gallery2 WHERE topic_id="1391608" UNION SELECT * FROM gallery2 WHERE topic_id="1804454" UNION SELECT * FROM gallery2 WHERE topic_id="1670267" UNION SELECT * FROM gallery2 WHERE topic_id="524214" UNION SELECT * FROM gallery2 WHERE topic_id="1338897" UNION SELECT * FROM gallery2 WHERE topic_id="1686497"