How about… 😉

SELECT * FROM gallery2 WHERE topic_id="771856" UNION SELECT * FROM gallery2 WHERE topic_id="1606026" UNION SELECT * FROM gallery2 WHERE topic_id="659495" UNION SELECT * FROM gallery2 WHERE topic_id="1359924" UNION SELECT * FROM gallery2 WHERE topic_id="1390007" UNION SELECT * FROM gallery2 WHERE topic_id="1165832" UNION SELECT * FROM gallery2 WHERE topic_id="1097088" UNION SELECT * FROM gallery2 WHERE topic_id="815555" UNION SELECT * FROM gallery2 WHERE topic_id="814874" UNION SELECT * FROM gallery2 WHERE topic_id="91214" UNION SELECT * FROM gallery2 WHERE topic_id="1203516" UNION SELECT * FROM gallery2 WHERE topic_id="1386542" UNION SELECT * FROM gallery2 WHERE topic_id="754566" UNION SELECT * FROM gallery2 WHERE topic_id="1143905" UNION SELECT * FROM gallery2 WHERE topic_id="983261" UNION SELECT * FROM gallery2 WHERE topic_id="1560631"