100 students from Hope Primary School participated in social practice. Senior students are in groups of two, and junior students are in groups of three. There are 41 groups in total. How many senior students are there?
希望小学100名学生参加社会实践．高年级学生两人一组，低年级三人一组，共有41组，高年级学生有多少人．
<gadget id="calculator">41 * 3</gadget>
<output>123</output>

<gadget id="calculator">123 - 100</gadget>
<output>23</output>

<gadget id="calculator">3 - 2</gadget>
<output>1</output>

<gadget id="calculator">23 / 1</gadget>
<output>23</output>

<result>23</result>