Diqing Shangri-La Airport (IATA: DIG, ICAO: ZPDQ) is an airport serving Shangri-La City, Diqing Tibetan Autonomous Prefecture, Yunnan Province, China. The airport does not have any taxiways(other than the one leading to the terminal building), requiring planes landind there to backtaxi to the terminal building.
Planes land on the roof of the airport.
The text does not specify where all planes land. The system made assumptions.