Class 61's last math test scores were all integers, with the highest score being 95 points and the lowest score being 82 points. It is known that at least 4 people in the class have the same grades. How many students are there in this class?
六1班上次数学考试成绩都是整数，其中最高分95分，最低分82分．已知班级至少有4个人成绩相同，这个班级至少有多少名学生．
<gadget id="calculator">95 - 82</gadget>
<output>13</output>

<gadget id="calculator">13 + 1</gadget>
<output>14</output>

<gadget id="calculator">14 * 3</gadget>
<output>42</output>

<gadget id="calculator">42 + 1</gadget>
<output>43</output>

<result>43</result>