There are 132 students in the first grade, and the number of students in the second grade is three times that of the first grade. How many students are there in the first and second grades?
一年级有学生132人，二年级学生人数是一年级的3倍，一、二年级共有学生多少人？
<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">132 * 4</gadget>
<output>528</output>

<result>528</result>