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, 4, ['619', '9623', '5589', 'r', 'Z', '3065', 'p', '9567', '5065', '8433', '2807', 'b', '8271', 'k']
[A]: r98553269916


[Q]: 5, 7, ['2725', '1489', 'P', '2021', 'c', '1605', 'R', 'T', 'p', 'q', '6487', '3395', 'u', 'x']
[A]: R5061c


[Q]: 11, 12, ['B', 'U', 'X', 'L', 'Q', 'F', 'e', 'n', 'a', 'O', 'H', '4467', 'f', '5407', '403', '9065', '9985', '3059', '1561', '6401', 's', '5851', 'm', '1447', 'y', '3353', 'V']
[A]:
7644H