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_nWINtxRN):
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: "complex"

Question 1 (Question id: q_i2J9jX8G):
Determine the value of n that satisfies: 30*n + 136 = 226 Respond with an integer.

Question 2 (Question id: q_EYJZ5c):
Find the value of d in the equation: -2*d - 16 = -34 Respond with an integer.



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

For every question id, supply an object whose 'answer' field stores the solution.
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.

Add a top-level 'global_metadata' field that records overall stats:
• num_questions_asked: how many questions were asked in total.
• num_questions_answered: count of questions present in your JSON.

In addition, add 'combined_results' with:
  • integer_info (id → integer answer)
  • sum_of_answers (sum of those integers)

Now provide the result JSON using the described format.

{"ground_truth": {"q_nWINtxRN": {"answer": "x", "first_char": "x"}, "q_i2J9jX8G": {"answer": 3}, "q_EYJZ5c": {"answer": 9}, "global_metadata": {"num_questions_asked": 3, "num_questions_answered": 3}, "combined_results": {"integer_info": {"q_i2J9jX8G": 3, "q_EYJZ5c": 9}, "sum_of_answers": 12}}}