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

### Instruction:
Can you tell me the lowest Long that has the Gain of 20, and the Loss smaller than 0?

### Inputs:
table_name: table, columns: ['Name', 'Gain', 'Loss', 'Long', 'Avg/g']

### Response:
SELECT MIN Long FROM table WHERE Gain = 20 AND Loss < 0