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_Gig24EKE):
Your job is to return the last character of a string as a string. For example, the last char of "hello" is "o". Return the last character of the following string: "a"

Question 1 (Question id: q_nnMsPn8y):
Calculate 8 + 1 - -5.

Question 2 (Question id: q_69hpM7S):
Find the value of y in the equation: 126 - 252*y = -4914 Respond with an integer.



Return a JSON with each question id as a key.

The value for each key should be an object that contains the answer in the field 'answer'.
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.

Beyond the question-id fields, add a 'global_metadata' object with summary information:
• num_questions_asked – total number of questions originally shown.
Record the answered-question count in the field 'num_questions_answered'.
• questions_with_integer_answers – list of question ids whose answers are integers (empty list if none).

Now provide the result JSON using the described format.

{"ground_truth": {"q_Gig24EKE": {"answer": "a", "original_string": "a"}, "q_nnMsPn8y": {"answer": 14, "additional_answer_info": {"half_answer": 7, "double_answer": 28}}, "q_69hpM7S": {"answer": 20, "additional_answer_info": {"half_answer": 10, "double_answer": 40}}, "global_metadata": {"num_questions_asked": 3, "num_questions_answered": 3, "questions_with_integer_answers": ["q_nnMsPn8y", "q_69hpM7S"]}}}