Xinguang Cinema has two floors, with 869 seats downstairs and 12 rows upstairs with 34 seats in each row. How many seats are there in this cinema?
新光电影院有上下两层楼，楼下有869个座位，楼上有12排，每排有34个座位．这个电影院一共有多少个座位？
<gadget id="calculator">12 * 34</gadget>
<output>408</output>

<gadget id="calculator">869 + 408</gadget>
<output>1_277</output>

<result>1_277</result>