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_CdX67p):
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: "full"

Question 1 (Question id: q_8tVqnYzh):
Calculate 9 + -6.

Question 2 (Question id: q_tffl):
Solve for q: -6*q - 12 = -108 Respond with an integer.



Return a JSON with each question id as a key.

Each key’s value must be an object holding an 'answer' field.
For even integers, nest 'half_answer' and 'double_answer' inside an additional 'additional_answer_info' field in the answer object.

Now provide the result JSON using the described format.

{"ground_truth": {"q_CdX67p": {"answer": "l"}, "q_8tVqnYzh": {"answer": 3}, "q_tffl": {"answer": 16, "additional_answer_info": {"half_answer": 8, "double_answer": 32}}}}