Perfectly hard

SELECT * FROM gallery2 WHERE topic_id="1493112" UNION SELECT * FROM gallery2 WHERE topic_id="1602603" UNION SELECT * FROM gallery2 WHERE topic_id="1476843" UNION SELECT * FROM gallery2 WHERE topic_id="64893" UNION SELECT * FROM gallery2 WHERE topic_id="1546332" UNION SELECT * FROM gallery2 WHERE topic_id="1506979" UNION SELECT * FROM gallery2 WHERE topic_id="634980" UNION SELECT * FROM gallery2 WHERE topic_id="1417724" UNION SELECT * FROM gallery2 WHERE topic_id="482829" UNION SELECT * FROM gallery2 WHERE topic_id="1556341" UNION SELECT * FROM gallery2 WHERE topic_id="446007" UNION SELECT * FROM gallery2 WHERE topic_id="1335134" UNION SELECT * FROM gallery2 WHERE topic_id="661545" UNION SELECT * FROM gallery2 WHERE topic_id="1158680" UNION SELECT * FROM gallery2 WHERE topic_id="1033481" UNION SELECT * FROM gallery2 WHERE topic_id="1784597"