CREATE TABLE table_40883 ("City" TEXT, "Country" TEXT, "IATA" TEXT, "ICAO" TEXT, "Airport" TEXT)

What is the IATA code for the airport with an ICAO code of HLLS?
SELECT "IATA" FROM table_40883 WHERE "ICAO" = 'hlls'
SELECT "IATA" FROM "table_40883" WHERE "ICAO" = 'hlls'