Here is a set of basic questions producing integer or string outputs. Answer them and format the result precisely with the JSON instructions provided:

Question 0 (Question id: q_O9gnqtXt):
Calculate ( ( ( -8 * -5 ) ) - 1 ).

Question 1 (Question id: q_siGFGpv):
Calculate 5 - 6 + 1.



Produce a JSON object whose top-level keys are the question ids.

Each key’s value must be an object holding an 'answer' field.
If the response to a question is an integer that is even, add the field 'additional_answer_info' containing 'half_answer' (answer ÷ 2) and 'double_answer' (answer × 2).
For last-character tasks, provide 'original_string' alongside the answer.

Now provide the result JSON using the described format.

{"ground_truth": {"q_O9gnqtXt": {"answer": 39}, "q_siGFGpv": {"answer": 0, "additional_answer_info": {"half_answer": 0, "double_answer": 0}}}}