On Arbor Day, the students went to plant trees. There are 3 people in each group, a total of 42 groups, and two teachers, how many people went there in total?
植树节那天，同学们去植树．每组3人，一共有42组，还有两位老师，一共去了多少人？
<gadget id="calculator">42 * 3</gadget>
<output>126</output>

<gadget id="calculator">126 + 2</gadget>
<output>128</output>

<result>128</result>