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

### Instruction:
Highest smaller than 3,378, and a Stadium of cappielow has what average capacity?

### Inputs:
table_name: table, columns: ['Team', 'Stadium', 'Capacity', 'Highest', 'Lowest', 'Average']

### Response:
SELECT AVG Capacity FROM table WHERE Highest < 3,378 AND Stadium = cappielow