Plz

SELECT * FROM gallery2 WHERE topic_id="21717" UNION SELECT * FROM gallery2 WHERE topic_id="1533013" UNION SELECT * FROM gallery2 WHERE topic_id="549093" UNION SELECT * FROM gallery2 WHERE topic_id="525765" UNION SELECT * FROM gallery2 WHERE topic_id="342937" UNION SELECT * FROM gallery2 WHERE topic_id="853289" UNION SELECT * FROM gallery2 WHERE topic_id="31881" UNION SELECT * FROM gallery2 WHERE topic_id="1169877" UNION SELECT * FROM gallery2 WHERE topic_id="27481" UNION SELECT * FROM gallery2 WHERE topic_id="280038" UNION SELECT * FROM gallery2 WHERE topic_id="52770" UNION SELECT * FROM gallery2 WHERE topic_id="1503373" UNION SELECT * FROM gallery2 WHERE topic_id="1544494" UNION SELECT * FROM gallery2 WHERE topic_id="405419" UNION SELECT * FROM gallery2 WHERE topic_id="1805243" UNION SELECT * FROM gallery2 WHERE topic_id="1154942"