On Saturday, the students went to visit in four batches. In the morning, there were 3 batches of students to visit, with 169 people in each batch. In the fourth batch, there were 193 people to visit in the afternoon. How many people went to visit in total?
星期六同学们分四批去参观，上午有3批学生参观，每批169人，第4批下午去参观有193人，去参观的一共有多少人？
<gadget id="calculator">169 * 3</gadget>
<output>507</output>

<gadget id="calculator">507 + 193</gadget>
<output>700</output>

<result>700</result>