The diameter of the outlet of the toothpaste is 5mm, Xiaohong squeezes out 1cm of toothpaste every time she brushes her teeth. This toothpaste can be used 36 times. The new packaging of this brand of toothpaste only changes the diameter of the outlet to 6 mm, and Xiaohong still squeezes out 1 cm of toothpaste each time according to her habit. In this way, how many times can this toothpaste be used?
牙膏出口处直径为5毫米，小红每次刷牙都挤出1厘米长的牙膏．这支牙膏可用36次．该品牌牙膏推出的新包装只是将出口处直径改为6毫米，小红还是按习惯每次挤出1厘米长的牙膏．这样，这一支牙膏只能用多少次？
<gadget id="calculator">5 / 2</gadget>
<output>5/2 = around 2.5</output>

<gadget id="calculator">(5/2) ** 2</gadget>
<output>25/4 = around 6.25</output>

<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</gadget>
<output>28.26</output>

<gadget id="calculator">36 / 28.26</gadget>
<output>1.273885</output>

<gadget id="calculator">3.14 * (25/4) * 1 * 1.273885</gadget>
<output>24.999993</output>

<result>24.999993</result>