A square has 9 dots on each side, and how many dots are drawn on the four sides of this square.
一个正方形，每边上画有9个点，这个正方形四边有至少画有多少个点．
<gadget id="calculator">9 * 4</gadget>
<output>36</output>

<gadget id="calculator">36 - 4</gadget>
<output>32</output>

<result>32</result>