There are 4 classes in the fourth grade of Yucai Primary School, with 52 students in each class, and 3 classes in the fifth grade, with 55 students in each class. How many students are there in the fourth and fifth grades?
育才小学四年级有4个班，每班52人，五年级有3个班，每班55人，四年级和五年级一共有多少人？
<gadget id="calculator">52 * 4</gadget>
<output>208</output>

<gadget id="calculator">55 * 3</gadget>
<output>165</output>

<gadget id="calculator">208 + 165</gadget>
<output>373</output>

<result>373</result>