Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Name | Circuit | Date | Winning driver | Winning constructor | Report |
| --- | --- | --- | --- | --- | --- |
| Pau Grand Prix | Pau | 19 February | Marcel Lehoux | Bugatti | Report |
| Swedish Winter Grand Prix | Rämen | 26 February | Per-Viktor Widengren | Alfa Romeo | Report |
| Swedish Ice Race | Hemfjärden | 5 March | Paul Pietsch | Alfa Romeo | Report |
| Tunis Grand Prix | Carthage | 26 March | Tazio Nuvolari | Alfa Romeo | Report |
| Alessandria Circuit | Alessandria | 30 April | Tazio Nuvolari | Alfa Romeo | Report |
| Tripoli Grand Prix | Mellaha | 7 May | Achille Varzi | Bugatti | Report |
| Finnish Grand Prix | Eläintarharata | 7 May | Karl Ebb | Mercedes-Benz | Report |
| Avusrennen | AVUS | 21 May | Achille Varzi | Bugatti | Report |
| Picardy Grand Prix | Péronne | 21 May | Philippe Étancelin | Alfa Romeo | Report |
| Eifelrennen | Nürburgring | 28 May | Tazio Nuvolari | Alfa Romeo | Report |
| Targa Florio | Madonie | 28 May | Antonio Brivio | Alfa Romeo | Report |
| Grand Prix des Frontières | Chimay | 4 June | Willy Longueville | Bugatti | Report |
| Provence Trophy | Nîmes | 4 June | Marcel Jacob | Bugatti | Report |
| Nîmes Grand Prix | Nîmes | 4 June | Tazio Nuvolari | Alfa Romeo | Report |
| Florence Circuit | Florence | 11 June | Carlo Felice Trossi | Alfa Romeo | Report |
| Lviv Grand Prix | Lviv | 11 June | Eugen Bjørnstad | Alfa Romeo | Report |
| Penya Rhin Grand Prix | Montjuïc Park | 25 June | Juan Zanelli | Alfa Romeo | Report |
| British Empire Trophy | Brooklands | 1 July | Stanislas Czaykowski | Bugatti | Report |
| Grand Prix de la Marne | Reims | 2 July | Philippe Étancelin | Alfa Romeo | Report |
| Mannin Moar | Douglas | 14 July | Brian Lewis | Alfa Romeo | Report |
| Dieppe Grand Prix | Dieppe | 16 July | Marcel Lehoux | Bugatti | Report |
| Coppa Ciano | Montenero | 30 July | Tazio Nuvolari | Maserati | Report |
| Swedish Summer Grand Prix | Vram | 6 August | Antonio Brivio | Alfa Romeo | Report |
| Nice Grand Prix | Nice | 6 August | Tazio Nuvolari | Maserati | Report |
| Coppa Acerbo | Pescara | 13 August | Luigi Fagioli | Alfa Romeo | Report |
| La Baule Grand Prix | La Baule | 13 August | William Grover-Williams | Bugatti | Report |
| Grand Prix du Comminges | Saint-Gaudens | 20 August | Luigi Fagioli | Alfa Romeo | Report |
| Marseille Grand Prix | Miramas | 27 August | Louis Chiron | Alfa Romeo | Report |
| Albi Grand Prix | Albi | 27 August | Louis Braillard | Bugatti | Report |
| Monza Grand Prix | Monza | 10 September | Marcel Lehoux | Bugatti | Report |
| Masaryk Circuit | Brno | 17 September | Louis Chiron | Bugatti | Report |
| Donington Park Trophy | Donington Park | 7 October | Earl Howe | Bugatti | Report |
| Mountain Championship | Brooklands | 21 October | Whitney Straight | Maserati | Report |
Question:
Tell me the circuit for 20 august
Answer:
Saint-Gaudens