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

### Instruction:
Can you tell me the sum of Loss that has the Gain of 2646?

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

### Response:
SELECT SUM Loss FROM table WHERE Gain = 2646