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, ['63', '5429', '5563', '2045', '875', '7163', '1869']
[A]: 54023655924536


[Q]: 4, 12, ['H', 'r', 'n', 'Y', '173', '9285', '3105', '883', 'n', '8915', '6923', 'S', 'T', 'o', '1639', '8421', 'g']
[A]: S32965198n38850135829371Y


[Q]: 9, 9, ['301', '8077', '3915', '9011', 'H', 'M', 'V', 'E', 'b', '2275', '4341', '7711']
[A]:
b