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

### Instruction:
What is the lowest total that has a rank less than 8, a silver greater than 6, and 20 as the bronze?

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

### Response:
SELECT MIN Total FROM table WHERE Rank < 8 AND Silver > 6 AND Bronze = 20