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]: 1, 3, ['r', '5153', 'I']
[A]: I3515r


[Q]: 1, 1, ['4571', '3997']
[A]: 1754


[Q]: 3, 3, ['A', '6543', '1655', '9287', '5623', '6679', '6971', 'Y', 'g', '7285', '4241', 'G', 'a']
[A]:
5561