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, 2, ['5111', 'U', '441', '8381']
[A]: U1115


[Q]: 5, 8, ['1861', '2831', '6423', '9641', 'o', 'J', '8215', '4149', '5345', '4371', '7747']
[A]: 94145128Jo


[Q]: 8, 12, ['9227', '8385', '1911', 'I', 'C', 'G', '4981', '2943', '8517', '3003', 'Q', 'o', '3653', '5333', 'm', 'v', '1709']
[A]:
oQ300371583492