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

### Instruction:
What is the least total number with a rank of 4 and a total silver number bigger than 3?

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

### Response:
SELECT MIN Total FROM table WHERE Rank = 4 AND Silver > 3