There were 542 tourists in the playground in the morning, 215 people left at noon, and 458 people came in the afternoon. How many people came to the playground all day?
游乐场上午有游客542人，中午有215人离去，下午又来了458人，全天游乐场内来了多少人？
<gadget id="calculator">542 + 458</gadget>
<output>1_000</output>

<result>1_000</result>