Master Li works 8 hours a day and processes 105 parts per hour. How many parts can he process on weekends and weekends?
李师傅一天工作8小时，每小时加工105个零件，每周双休一周可以加工多少个零件？
<gadget id="calculator">7 - 2</gadget>
<output>5</output>

<gadget id="calculator">105 * 5 * 8</gadget>
<output>4_200</output>

<result>4_200</result>