Hope Primary School has four grades, each grade has 3 classes, and each class has 49 students. How many students are there in Hope Primary School?
希望小学有四个年级，每个年级有3个班，每班有49人，希望小学共有多少学生？
<gadget id="calculator">3 * 4 * 49</gadget>
<output>588</output>

<result>588</result>