What year was the team Club of atlético de san juan fc who plays at hiram bithorn stadium founded.
CREATE TABLE table_name_18 (founded INTEGER, stadium VARCHAR, club VARCHAR)
SELECT SUM(founded) FROM table_name_18 WHERE stadium = "hiram bithorn stadium" AND club = "atlético de san juan fc"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_18 (founded INTEGER, stadium VARCHAR, club VARCHAR) Question: What year was the team Club of atlético de san juan fc who plays at hiram bithorn stadium founded. [/INST] SELECT SUM(founded) FROM table_name_18 WHERE stadium = "hiram bithorn stadium" AND club = "atlético de san juan fc" </s>