It takes 12 seconds for the clock to strike 4 times at 4 o'clock, so how many seconds does it take to strike 10 times at 10 o'clock? how many seconds
时钟4点钟敲4下，用12秒，那么10点钟敲10下用几秒钟？多少秒
<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">12 / 3</gadget>
<output>4</output>

<gadget id="calculator">10 - 1</gadget>
<output>9</output>

<gadget id="calculator">4 * 9</gadget>
<output>36</output>

<result>36</result>