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

### Instruction:
What is the lowest episode # with an air date of October 31, 2001?

### Inputs:
table_name: table, columns: ['Episode #', '# in Season', 'Episode Name', 'Airdate', 'Location']

### Response:
SELECT MIN Episode # FROM table WHERE Airdate = october 31, 2001