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]: 2, 6, ['2245', 'H', 'X', '339', '4389', '5331', '6865', '4541', '4845', '6071']
[A]: 13359834933XH


[Q]: 5, 5, ['6131', '6209', 'H', 'g', '4529', '491', '2143', '6281']
[A]: 9254


[Q]: 5, 16, ['4965', '7129', 'R', 'y', '6857', '1715', '4183', '7559', '3695', '5395', 'T', '6731', 'G', '4697', 'c', 'D', 'U']
[A]:
Dc7964G1376T593559639557381451717586