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]: 4, 4, ['w', '3895', '4989', '7875', 'u']
[A]: 5787


[Q]: 10, 11, ['5441', 'k', '9573', '4937', '7305', '2303', 'P', 'P', 'N', '2549', 'C', '5865', 'M', '9033', 'k', 'A']
[A]: C9452


[Q]: 5, 7, ['B', 'C', 'T', 'A', 'N', 'x', '9549', 'W']
[A]:
9459xN