Table:
text: Swiss International Air Lines destinations
Destinations
Destinations
City Country IATA ICAO Airport
Birmingham United Kingdom BHX EGBB Birmingham Airport
Boston United States BOS KBOS Logan Airport
Brussels Belgium BRU EBBR Brussels Airport
Bucharest Romania OTP LROP Otopeni Airport
Budapest Hungary BUD LHBP Ferihegy Airport
Buenos Aires Argentina EZE SAEZ Ministro Pistarini Airport (Ezeiza)
Cairo Egypt CAI HECA Cairo Airport
Caracas Venezuela CCS SVMI Simón Bolívar Airport
Casablanca Morocco CMN GMMN Mohammed V Airport
Chicago United States ORD KORD O`Hare Airport
Copenhagen Denmark CPH EKCH Kastrup Airport
Dar es Salaam Tanzania DAR HTDA Julius Nyerere Airport
Delhi India DEL VIDP Indira Gandhi Airport
Douala Cameroon DLA FKKD Douala Airport
Dubai United Arab Emirates DXB OMDB Dubai Airport

Question: What is the ICAO city of Douala among Swiss International Air Lines destinations?