branch of the Armed Police Corps of Hainan Province was ordered to overhaul a section of power supply line hit by heavy rain. It was originally planned to be completed in 36 hours, but the actual overhaul was 180 meters more per hour, and the result was completed 12 hours ahead of schedule. How many meters was originally planned to overhaul the line per hour?
海南省武警总队某部奉命检修一段受特大暴雨袭击的供电线路，原计划36小时完成，实际每小时多检修180米，结果提前12小时完成．原计划每小时检修线路多少米？
<gadget id="calculator">180 * 36</gadget>
<output>6_480</output>

<gadget id="calculator">180 * 12</gadget>
<output>2_160</output>

<gadget id="calculator">6_480 - 2_160</gadget>
<output>4_320</output>

<gadget id="calculator">12 - 36</gadget>
<output>-24</output>

<gadget id="calculator">36 + (-24)</gadget>
<output>12</output>

<gadget id="calculator">4_320 / 12</gadget>
<output>360</output>

<result>360</result>