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

### Instruction:
How many games tied for the air force with over 57 years participating?

### Inputs:
table_name: table, columns: ['Mountain West', 'Lost', 'Tied', 'Pct.', 'Years', 'Total Games']

### Response:
SELECT COUNT Tied FROM table WHERE Mountain West = air force AND Years > 57