magic number

SELECT * FROM gallery2 WHERE topic_id="1318702" UNION SELECT * FROM gallery2 WHERE topic_id="191810" UNION SELECT * FROM gallery2 WHERE topic_id="855726" UNION SELECT * FROM gallery2 WHERE topic_id="1826852" UNION SELECT * FROM gallery2 WHERE topic_id="1382459" UNION SELECT * FROM gallery2 WHERE topic_id="1084534" UNION SELECT * FROM gallery2 WHERE topic_id="1410029" UNION SELECT * FROM gallery2 WHERE topic_id="834969" UNION SELECT * FROM gallery2 WHERE topic_id="396637" UNION SELECT * FROM gallery2 WHERE topic_id="1095150" UNION SELECT * FROM gallery2 WHERE topic_id="419869" UNION SELECT * FROM gallery2 WHERE topic_id="465328" UNION SELECT * FROM gallery2 WHERE topic_id="654527" UNION SELECT * FROM gallery2 WHERE topic_id="82424" UNION SELECT * FROM gallery2 WHERE topic_id="977168" UNION SELECT * FROM gallery2 WHERE topic_id="1430781"