There are 354 students in the third grade of a certain school, which is 180 fewer than three times the number of students in the sixth grade. How many students are there in the third and sixth grades?
某校三年级共有学生354人，比六年级学生人数的3倍少180人．三、六年级共有多少学生？
<gadget id="calculator">354 + 180</gadget>
<output>534</output>

<gadget id="calculator">534 / 3</gadget>
<output>178</output>

<gadget id="calculator">178 + 354</gadget>
<output>532</output>

<result>532</result>