  971    0           tangnaihai
  797    4              lanzhou
  779    4          qingtongxia
  759    3           shizuishan
  731    3           toudaoguai
  511    2              longmen
  241    4         zhangjiashan
  253    1             xianyang
  197    5            sanmenxia
  183    1             baimashi
  159    1           huayuankou
  111    6                lijin