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_wTxXCq):
Solve for j: 144*j - 8 = 2440 Respond with an integer.

Question 1 (Question id: q_7etuDWig):
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: "cells"



Return a JSON with each question id (except for q_wTxXCq) as a key.

Each key’s value must be an object holding an 'answer' field.
Include an 'answer_type' field (value 'string' or 'integer') for every answer object.
For even integer answers, include 'half_answer' equal to answer ÷ 2.
If the question asks for the last character of a string, add an 'original_string' field containing the source string.

Now provide the result JSON using the described format.

{"ground_truth": {"q_7etuDWig": {"answer": "s", "answer_type": "string", "original_string": "cells"}}}