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

### Instruction:
What average Total has a Gold award of 13 and a Bronze award less than 13?

### Inputs:
table_name: table, columns: ['Rank', 'Nation', 'Gold', 'Silver', 'Bronze', 'Total']

### Response:
SELECT AVG Total FROM table WHERE Gold = 13 AND Bronze < 13