There were 853 tourists in the Children's Paradise in the morning, 370 people left at noon, and 158 people came in in the afternoon. How many people are there in the garden now?
儿童乐园上午有游客853人，中午有370人离开，下午又有158人进来．现在园内有多少人？
<gadget id="calculator">853 - 370</gadget>
<output>483</output>

<gadget id="calculator">483 + 158</gadget>
<output>641</output>

<result>641</result>