During the Arbor Day period, students from Class Five 2, Class Five 3, and Class Five 4 participated in labor in groups. The total number of students was between 90 and 150. There were no more than 3 students in each group, and 3 more students in each group of 5 students. , Each group of 7 people is less than 4 people. How many students are there in the three classes participating in labor?
植树节期间，五2班、五3班、五4班3个班学生分组参加劳动，总人数在90～150之间，每组3人则不多不少，每组5人则多3人，每组7人则少4人．三个班参加劳动的学生共有多少人？
<gadget id="calculator">3 * 5 * 7</gadget>
<output>105</output>

<gadget id="calculator">105 + 3</gadget>
<output>108</output>

<result>108</result>