Xiaohong lives on the seventh floor, and it takes him 4 minutes to go from the first floor to the third floor, so how many minutes does it take her to go from the first floor to the seventh floor?
小红家住七楼，他从一楼到三楼要用4分钟，那么她从一楼到七楼要几分钟？
<gadget id="calculator">3 - 1</gadget>
<output>2</output>

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

<gadget id="calculator">7 - 1</gadget>
<output>6</output>

<gadget id="calculator">2 * 6</gadget>
<output>12</output>

<result>12</result>