There are 203 students in the third grade, which is 13 fewer than the fourth grade. How many students are there in the third and fourth grades?
三年级有203人，比四年级少13人，三、四年级一共有多少人？
<gadget id="calculator">203 + 13 + 203</gadget>
<output>419</output>

<result>419</result>