Ladder

SELECT * FROM gallery2 WHERE topic_id="1245351" UNION SELECT * FROM gallery2 WHERE topic_id="710771" UNION SELECT * FROM gallery2 WHERE topic_id="1588700" UNION SELECT * FROM gallery2 WHERE topic_id="1270297" UNION SELECT * FROM gallery2 WHERE topic_id="1522582" UNION SELECT * FROM gallery2 WHERE topic_id="1673061" UNION SELECT * FROM gallery2 WHERE topic_id="1692582" UNION SELECT * FROM gallery2 WHERE topic_id="1262920" UNION SELECT * FROM gallery2 WHERE topic_id="1660882" UNION SELECT * FROM gallery2 WHERE topic_id="524238" UNION SELECT * FROM gallery2 WHERE topic_id="684561" UNION SELECT * FROM gallery2 WHERE topic_id="1714117" UNION SELECT * FROM gallery2 WHERE topic_id="1449544" UNION SELECT * FROM gallery2 WHERE topic_id="1669276" UNION SELECT * FROM gallery2 WHERE topic_id="989086" UNION SELECT * FROM gallery2 WHERE topic_id="1621941"