One day, there were 605 tourists in the China National Pavilion in the Shanghai World Expo in the morning, 458 people left at noon, and 572 people came in the afternoon. How many tourists were there in the pavilion at this time?
某天，上海世博园中国国家馆上午有游客605人，中午有458人离去，下午又来了572人，这时馆内有游客多少人？
<gadget id="calculator">605 - 458</gadget>
<output>147</output>

<gadget id="calculator">147 + 572</gadget>
<output>719</output>

<result>719</result>