The total length of the Qinghai-Tibet Railway from Lhasa to Golmud is 1,142 kilometers, which is 79 kilometers shorter than 1.5 times the total length from Xining to Golmud. How many kilometers is the total length from Xining to Golmud?
青藏铁路从拉萨至格尔木全长1142千米，比西宁至格尔木全长的1.5倍少79千米，西宁至格尔木的全长是多少千米？
<gadget id="calculator">1_142 + 79</gadget>
<output>1_221</output>

<gadget id="calculator">1_221 / 1.5</gadget>
<output>814</output>

<result>814</result>