I hope you like

SELECT * FROM gallery2 WHERE topic_id="772968" UNION SELECT * FROM gallery2 WHERE topic_id="1199670" UNION SELECT * FROM gallery2 WHERE topic_id="1248628" UNION SELECT * FROM gallery2 WHERE topic_id="1026733" UNION SELECT * FROM gallery2 WHERE topic_id="1270134" UNION SELECT * FROM gallery2 WHERE topic_id="912664" UNION SELECT * FROM gallery2 WHERE topic_id="1717507" UNION SELECT * FROM gallery2 WHERE topic_id="87454" UNION SELECT * FROM gallery2 WHERE topic_id="1056206" UNION SELECT * FROM gallery2 WHERE topic_id="1319349" UNION SELECT * FROM gallery2 WHERE topic_id="1014810" UNION SELECT * FROM gallery2 WHERE topic_id="1783984" UNION SELECT * FROM gallery2 WHERE topic_id="763701" UNION SELECT * FROM gallery2 WHERE topic_id="1610452" UNION SELECT * FROM gallery2 WHERE topic_id="1061087" UNION SELECT * FROM gallery2 WHERE topic_id="1695003"