The pencil store in the stationery store has a "buy 3 get 1 free" campaign. If you want to buy 32 pencils at 1 yuan each, how much do you need to pay?
文具店铅笔搞"买3送1"的活动，要买32支铅笔，每支1元，那么需要付几元？
<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">32 / 4</gadget>
<output>8</output>

<gadget id="calculator">8 * 1</gadget>
<output>8</output>

<gadget id="calculator">32 - 8</gadget>
<output>24</output>

<result>24</result>