Hardness

SELECT * FROM gallery2 WHERE topic_id="658876" UNION SELECT * FROM gallery2 WHERE topic_id="1369481" UNION SELECT * FROM gallery2 WHERE topic_id="1020414" UNION SELECT * FROM gallery2 WHERE topic_id="627445" UNION SELECT * FROM gallery2 WHERE topic_id="361410" UNION SELECT * FROM gallery2 WHERE topic_id="1615130" UNION SELECT * FROM gallery2 WHERE topic_id="1673463" UNION SELECT * FROM gallery2 WHERE topic_id="1661883" UNION SELECT * FROM gallery2 WHERE topic_id="649656" UNION SELECT * FROM gallery2 WHERE topic_id="1219758" UNION SELECT * FROM gallery2 WHERE topic_id="476621" UNION SELECT * FROM gallery2 WHERE topic_id="994471" UNION SELECT * FROM gallery2 WHERE topic_id="1247024" UNION SELECT * FROM gallery2 WHERE topic_id="293382" UNION SELECT * FROM gallery2 WHERE topic_id="1635389" UNION SELECT * FROM gallery2 WHERE topic_id="1659899"