Progression

SELECT * FROM gallery2 WHERE topic_id="623669" UNION SELECT * FROM gallery2 WHERE topic_id="707407" UNION SELECT * FROM gallery2 WHERE topic_id="1550904" UNION SELECT * FROM gallery2 WHERE topic_id="500188" UNION SELECT * FROM gallery2 WHERE topic_id="1034633" UNION SELECT * FROM gallery2 WHERE topic_id="1780388" UNION SELECT * FROM gallery2 WHERE topic_id="1432534" UNION SELECT * FROM gallery2 WHERE topic_id="1068521" UNION SELECT * FROM gallery2 WHERE topic_id="1454486" UNION SELECT * FROM gallery2 WHERE topic_id="1574441" UNION SELECT * FROM gallery2 WHERE topic_id="25265" UNION SELECT * FROM gallery2 WHERE topic_id="907886" UNION SELECT * FROM gallery2 WHERE topic_id="418638" UNION SELECT * FROM gallery2 WHERE topic_id="1525198" UNION SELECT * FROM gallery2 WHERE topic_id="1160646" UNION SELECT * FROM gallery2 WHERE topic_id="779293"