A toothpaste has a nozzle diameter of 6 mm. Xiaohong squeezes 1 cm long toothpaste every time she brushes her teeth. One toothpaste can be squeezed 40 times. Now, the packaging of this toothpaste has been changed, and the diameter of the nozzle has been changed to 8 mm, but Xiaohong is still used to extruding toothpaste 1 cm long each time. What is the maximum number of squeezes of this toothpaste in a new package?
一种牙膏的管口直径是6毫米，小红每次刷牙都挤1厘米长的牙膏，一支这种牙膏可挤40次．现在，这种牙膏改变了包装，将管口直径改为8毫米，但小红还是习惯每次挤出1厘米长的牙膏．新包装的这种牙膏最多能挤多少次？
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3.14 * 9 * 1 * 10 * 40</gadget>
<output>11_304</output>

<gadget id="calculator">8 / 2</gadget>
<output>4</output>

<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">3.14 * 16 * 1 * 10</gadget>
<output>502.4</output>

<gadget id="calculator">11_304 / 502.4</gadget>
<output>22.5</output>

<result>22.5</result>