Very Flexible

SELECT * FROM gallery2 WHERE topic_id="544099" UNION SELECT * FROM gallery2 WHERE topic_id="1780871" UNION SELECT * FROM gallery2 WHERE topic_id="208542" UNION SELECT * FROM gallery2 WHERE topic_id="277374" UNION SELECT * FROM gallery2 WHERE topic_id="1816303" UNION SELECT * FROM gallery2 WHERE topic_id="108703" UNION SELECT * FROM gallery2 WHERE topic_id="1643249" UNION SELECT * FROM gallery2 WHERE topic_id="1211891" UNION SELECT * FROM gallery2 WHERE topic_id="1368929" UNION SELECT * FROM gallery2 WHERE topic_id="1470800" UNION SELECT * FROM gallery2 WHERE topic_id="1075621" UNION SELECT * FROM gallery2 WHERE topic_id="1179266" UNION SELECT * FROM gallery2 WHERE topic_id="923334" UNION SELECT * FROM gallery2 WHERE topic_id="280958" UNION SELECT * FROM gallery2 WHERE topic_id="703690" UNION SELECT * FROM gallery2 WHERE topic_id="676624"