In this task, you are given inputs 'i', 'j', and A, where 'i' and 'j' are integers and A is a list. A list is shown by two brackets and comma-separated numbers and characters inside, like ['1', '12', 'l']. You need to concatenate all elements of A from the ith element to the jth element, and then reverse the resulting string. 'i' and 'j' will be non-negative, and will always have a value less than the length of A. 'i' will always be less than 'j'. Perform the operations in order, i.e., do not reverse first and then concatenate.

[Q]: 5, 9, ['g', 'B', '7695', 'X', 'h', 'A', '693', 'x', 'Q', 'l', 'Q', '9223', 'y', 'a', 'q']
[A]: Qx396Ah


[Q]: 10, 17, ['H', '8993', 'l', 'W', 'T', '7135', 'A', '743', '7525', '1361', '9927', '3409', 'g', 'k', 'd', 'w', '7523', '1303']
[A]: 3257wdkg904372991631


[Q]: 10, 18, ['S', 'S', '6525', '3017', '9729', '5747', '4409', '9501', '4083', 'f', 'X', 'B', 'u', '5967', '9949', '7227', '6993', '8105', 'n', 'C', '2131', '3105', 'd', 'E']
[A]:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
50183996722794997695uBXf


