A's 4-day workload is equal to B's 3-day workload. At the same time, A and B process a total of 56 parts. How many fewer parts does A make than B?
甲4天的工作量与乙3天的工作量相等，在同一时间内，甲乙共加工零件56个，甲比乙少做多少个．
<gadget id="calculator">3 + 4</gadget>
<output>7</output>

<gadget id="calculator">56 / 7</gadget>
<output>8</output>

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

<gadget id="calculator">8 * 3</gadget>
<output>24</output>

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

<result>8</result>