Zhongshan Park received 578 tourists in the morning and 456 tourists in the afternoon. How many tourists did they receive in the whole day?
中山公园上午接待游客578人，下午接待游客456人，全天一共接待游客多少人？
<gadget id="calculator">578 + 456</gadget>
<output>1_034</output>

<result>1_034</result>