To build a section of road, first half of the total length was repaired, less than 50 meters, then the remaining half was more than 35 meters, and finally 75 meters were left unrepaired. How many meters is the total length of this section of road?
修一段路，先修了全长的一半少50米，又修了余下的一半多35米，最后还剩75米没修，这段路共多少米？
<gadget id="calculator">35 + 75</gadget>
<output>110</output>

<gadget id="calculator">110 * 2</gadget>
<output>220</output>

<gadget id="calculator">220 - 50</gadget>
<output>170</output>

<gadget id="calculator">170 * 2</gadget>
<output>340</output>

<result>340</result>