The leather shoe factory plans to produce 4,500 pairs of leather shoes in January, but actually produces 154 pairs per day. After 8 days of production, how many pairs of leather shoes are left unfinished?
皮鞋厂计划一月份生产皮鞋4500双，实际每天生产154双，生产8天后，还剩多少双皮鞋没完成？
<gadget id="calculator">154 * 8</gadget>
<output>1_232</output>

<gadget id="calculator">4_500 - 1_232</gadget>
<output>3_268</output>

<result>3_268</result>