Which one first ? ( pms are open )

SELECT * FROM gallery2 WHERE topic_id="979245" UNION SELECT * FROM gallery2 WHERE topic_id="1718277" UNION SELECT * FROM gallery2 WHERE topic_id="807392" UNION SELECT * FROM gallery2 WHERE topic_id="776051" UNION SELECT * FROM gallery2 WHERE topic_id="489645" UNION SELECT * FROM gallery2 WHERE topic_id="834809" UNION SELECT * FROM gallery2 WHERE topic_id="1048131" UNION SELECT * FROM gallery2 WHERE topic_id="398352" UNION SELECT * FROM gallery2 WHERE topic_id="550099" UNION SELECT * FROM gallery2 WHERE topic_id="1696223" UNION SELECT * FROM gallery2 WHERE topic_id="1610845" UNION SELECT * FROM gallery2 WHERE topic_id="1568395" UNION SELECT * FROM gallery2 WHERE topic_id="488203" UNION SELECT * FROM gallery2 WHERE topic_id="899977" UNION SELECT * FROM gallery2 WHERE topic_id="1302961" UNION SELECT * FROM gallery2 WHERE topic_id="1142106"