There are several students in the fourth grade. If there are 7 students in a group, there will be 3 students; if there are 11 students, there will be 5 students. How many students are there at least in the fourth grade?
四年级有学生若干名，若7人一行最后余3人；若11人一行最后余5人．四年级最少有学生多少人？
<gadget id="calculator">7 * 5</gadget>
<output>35</output>

<gadget id="calculator">35 + 3</gadget>
<output>38</output>

<result>38</result>