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_x3YcLKS5):
Calculate ( 8 - 2 + -2 ).

Question 1 (Question id: q_bjMoidXT):
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: "understand"

Question 2 (Question id: q_PVcXG):
Your task is to count how many legs there are in total when given a list of animals.

Now, how many legs are there in total if you have 2 cockroachs, 4 spiders, 4 grasshoppers?
 Respond with an integer.

Question 3 (Question id: q_rmoe):
Solve for b: 18*b = 72 Respond with an integer.

Question 4 (Question id: q_4vXhFPx):
Calculate -6 / 2 + 7.

Question 5 (Question id: q_LFLhm2ZP):
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 6 (Question id: q_DNTi):
Find the value of x in the equation: 21 - 17*x = -149 Respond with an integer.

Question 7 (Question id: q_NKuW):
Calculate 1 * 5 - -2.



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

Each key’s value must be an object holding an 'answer' field. If a question involves animal-leg or letter counting, include 'task_type' set to 'leg_counting' or 'letter_counting'.
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_x3YcLKS5": {"answer": 4, "additional_answer_info": {"half_answer": 2, "double_answer": 8}}, "q_bjMoidXT": {"answer": "d", "first_char": "d"}, "q_PVcXG": {"answer": 68, "task_type": "leg_counting", "additional_answer_info": {"half_answer": 34, "double_answer": 136}}, "q_rmoe": {"answer": 4, "additional_answer_info": {"half_answer": 2, "double_answer": 8}}, "q_4vXhFPx": {"answer": 4, "additional_answer_info": {"half_answer": 2, "double_answer": 8}}, "q_LFLhm2ZP": {"answer": "a", "first_char": "a"}, "q_DNTi": {"answer": 10, "additional_answer_info": {"half_answer": 5, "double_answer": 20}}, "q_NKuW": {"answer": 7}}}