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

### Instruction:
What year was the team Club of atlético de san juan fc who plays at hiram bithorn stadium founded.

### Inputs:
table_name: table, columns: ['Club', 'Home city', 'Stadium', 'Founded', 'Seasons in PRSL']

### Response:
SELECT SUM Founded FROM table WHERE Stadium = hiram bithorn stadium AND Club = atlético de san juan fc