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

### Instruction:
What is the total number of seats of the Christian Democratic Union (CDU) party?

### Inputs:
table_name: table, columns: ['Party', 'Party List votes', 'Vote percentage', 'Total Seats', 'Seat percentage']

### Response:
SELECT Total Seats FROM table WHERE Party = christian democratic union (cdu)