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_xXOUBOst):
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: "every"

Question 1 (Question id: q_IAXRn):
Calculate 1 * ( 5 + 7 ).

Question 2 (Question id: q_bOtHLCk):
Find the value of r in the equation: 80*r + 272 = 1552 Respond with an integer.



Your output must be a JSON mapping every question id to its answer info.

For every question id, supply an object whose 'answer' field stores the solution.
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 string answers, include 'first_char' with the answer’s initial letter.
For last-character tasks, provide 'original_string' alongside the answer.

Now provide the result JSON using the described format.

{"ground_truth": {"q_xXOUBOst": {"answer": "y", "first_char": "y", "original_string": "every"}, "q_IAXRn": {"answer": 12, "additional_answer_info": {"half_answer": 6, "double_answer": 24}}, "q_bOtHLCk": {"answer": 16, "additional_answer_info": {"half_answer": 8, "double_answer": 32}}}}