Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
How many years had a location at Forest Hills and a score of 6–3, 6–3 for John McEnroe?

### Inputs:
table_name: table, columns: ['Location', 'Year', 'Champion', 'Runner-up', 'Score']

### Response:
SELECT COUNT Year FROM table WHERE Location = forest hills AND Runner-up = john mcenroe AND Score = 6–3, 6–3