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_kCaC):
Calculate 2 + -2.

Question 1 (Question id: q_q24ZB):
Calculate 5 + 3 / 1.

Question 2 (Question id: q_AV1b):
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: "and"



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.
Include an 'answer_type' field (value 'string' or 'integer') for every answer object.
For even integers, nest 'half_answer' and 'double_answer' inside an additional 'additional_answer_info' field in the answer object.
For string answers, include 'first_char' with the answer’s initial letter.

Now provide the result JSON using the described format.

{"ground_truth": {"q_kCaC": {"answer": 0, "answer_type": "integer", "additional_answer_info": {"half_answer": 0, "double_answer": 0}}, "q_q24ZB": {"answer": 8, "answer_type": "integer", "additional_answer_info": {"half_answer": 4, "double_answer": 16}}, "q_AV1b": {"answer": "d", "answer_type": "string", "first_char": "d"}}}