The school established an art group and a calligraphy group, and each person participated in at least one. There were 41 people in the third (two) class in the art group, 52 people in the calligraphy group, and 23 people in both groups. how many people?
学校创办了美术小组和书法小组，每人至少参加一个，三(二)班有41人参加美术小组，有52人参加书法小组，有23人这两个小组都参加，三(二)班共多少人？
<gadget id="calculator">52 - 23</gadget>
<output>29</output>

<gadget id="calculator">41 + 29</gadget>
<output>70</output>

<result>70</result>