Expert level

SELECT * FROM gallery2 WHERE topic_id="1533161" UNION SELECT * FROM gallery2 WHERE topic_id="356968" UNION SELECT * FROM gallery2 WHERE topic_id="1455084" UNION SELECT * FROM gallery2 WHERE topic_id="1742227" UNION SELECT * FROM gallery2 WHERE topic_id="340895" UNION SELECT * FROM gallery2 WHERE topic_id="867187" UNION SELECT * FROM gallery2 WHERE topic_id="834147" UNION SELECT * FROM gallery2 WHERE topic_id="1545036" UNION SELECT * FROM gallery2 WHERE topic_id="1808097" UNION SELECT * FROM gallery2 WHERE topic_id="1451109" UNION SELECT * FROM gallery2 WHERE topic_id="772879" UNION SELECT * FROM gallery2 WHERE topic_id="1578538" UNION SELECT * FROM gallery2 WHERE topic_id="1728765" UNION SELECT * FROM gallery2 WHERE topic_id="943541" UNION SELECT * FROM gallery2 WHERE topic_id="752695" UNION SELECT * FROM gallery2 WHERE topic_id="279417"