What is the most economical route from Linyi to Tibet?

I finally saw my fellow villagers traveling to Tibet. I am also from Linyi (near the square in country-specific ones) and work in Tibet.

The most economical thing is to start from Linyi-Zhengzhou, and the hard seat can't reach 50 yuan.

Then take the train from Zhengzhou (the trains from Shanghai and Guangzhou to Lhasa all pass through Zhengzhou), and take the hard sleeper 760-840 yuan soft sleeper 1050- 1 170 yuan.

The running time from Zhengzhou to Lhasa is 46 hours.

It is best to arrange enough time. If you visit Ali, you can contact me. I work in Arriga County.