To build a 3,600-meter-long road, the full length (1/5) was built in the first week, and the remaining (1/5) was repaired in the second week. How many meters are left to be repaired?
修一条3600米长的公路，第一周修了全长的(1/5)，第二周修了余下的(1/5)，还剩多少米没有修？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">3_600 * (4/5) * (4/5)</gadget>
<output>2_304</output>

<result>2_304</result>