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

### Instruction:
Which Game has Points of 53, and an Opponent of @ minnesota north stars, and a December larger than 30?

### Inputs:
table_name: table, columns: ['Game', 'December', 'Opponent', 'Score', 'Record', 'Points']

### Response:
SELECT AVG Game FROM table WHERE Points = 53 AND Opponent = @ minnesota north stars AND December > 30