There are 86 students in the third grade, which is 37 fewer than the students in the fourth grade. How many students are there in the third and fourth grades?
三年级有86个学生，比四年级的学生少37人，三年级和四年级一共多少人？
<gadget id="calculator">86 + 37 + 86</gadget>
<output>209</output>

<result>209</result>