A square is surrounded by a wire 36 decimeters long, what is the side length of the square in centimeters?
用一根36分米长的铁丝围成一个正方形，这个正方形的边长是多少厘米．
<gadget id="calculator">36 / 4</gadget>
<output>9</output>

<gadget id="calculator">9 * 10</gadget>
<output>90</output>

<result>90</result>