A road has been repaired for 350 kilometers, and the rest is 150 kilometers less than the repaired one. How many kilometers is the total length of this road?
一条公路已经修了350千米，剩下的比已修的少150千米，这条公路全长多少千米？
<gadget id="calculator">350 - 150</gadget>
<output>200</output>

<gadget id="calculator">200 + 350</gadget>
<output>550</output>

<result>550</result>