Ladder

SELECT * FROM gallery2 WHERE topic_id="1321775" UNION SELECT * FROM gallery2 WHERE topic_id="1195105" UNION SELECT * FROM gallery2 WHERE topic_id="295413" UNION SELECT * FROM gallery2 WHERE topic_id="1283787" UNION SELECT * FROM gallery2 WHERE topic_id="1508335" UNION SELECT * FROM gallery2 WHERE topic_id="772850" UNION SELECT * FROM gallery2 WHERE topic_id="1331142" UNION SELECT * FROM gallery2 WHERE topic_id="149496" UNION SELECT * FROM gallery2 WHERE topic_id="1610778" UNION SELECT * FROM gallery2 WHERE topic_id="241120" UNION SELECT * FROM gallery2 WHERE topic_id="264153" UNION SELECT * FROM gallery2 WHERE topic_id="1042657" UNION SELECT * FROM gallery2 WHERE topic_id="865402" UNION SELECT * FROM gallery2 WHERE topic_id="241215" UNION SELECT * FROM gallery2 WHERE topic_id="7693" UNION SELECT * FROM gallery2 WHERE topic_id="262822"