The sum of the diameter and radius of a circle is 36 cm, what is the diameter of the circle in cm?
一个圆的直径与半径的和是36厘米，这个圆的直径是多少厘米．
<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<gadget id="calculator">36 / 3</gadget>
<output>12</output>

<gadget id="calculator">12 * 2</gadget>
<output>24</output>

<result>24</result>