A TV factory planned to produce 12,000 LCD TVs last year. As a result, the annual plan was completed in the first half of the year (3/5), and in the second half of the year (13/24). How many TV sets did this factory overproduce last year?
某电视机厂去年计划生产液晶电视12000台，结果上半年完成全年计划的(3/5)，下半年完成全年计划的(13/24)．这个厂去年超产电视机多少台？
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">12_000 * (3/5)</gadget>
<output>7_200</output>

<gadget id="calculator">13 / 24</gadget>
<output>13/24 = around 0.541667</output>

<gadget id="calculator">12_000 * (13/24)</gadget>
<output>6_500</output>

<gadget id="calculator">7_200 + 6_500</gadget>
<output>13_700</output>

<gadget id="calculator">13_700 - 12_000</gadget>
<output>1_700</output>

<result>1_700</result>