My best asset is

SELECT * FROM gallery2 WHERE topic_id="161334" UNION SELECT * FROM gallery2 WHERE topic_id="1664600" UNION SELECT * FROM gallery2 WHERE topic_id="70469" UNION SELECT * FROM gallery2 WHERE topic_id="554981" UNION SELECT * FROM gallery2 WHERE topic_id="1630336" UNION SELECT * FROM gallery2 WHERE topic_id="1658510" UNION SELECT * FROM gallery2 WHERE topic_id="256236" UNION SELECT * FROM gallery2 WHERE topic_id="1332856" UNION SELECT * FROM gallery2 WHERE topic_id="844855" UNION SELECT * FROM gallery2 WHERE topic_id="661520" UNION SELECT * FROM gallery2 WHERE topic_id="1395948" UNION SELECT * FROM gallery2 WHERE topic_id="1336472" UNION SELECT * FROM gallery2 WHERE topic_id="653924" UNION SELECT * FROM gallery2 WHERE topic_id="123845" UNION SELECT * FROM gallery2 WHERE topic_id="1291167" UNION SELECT * FROM gallery2 WHERE topic_id="558624"