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.

[EX Q]: 4, 9, ['6451', '9261', 's', '5587', 'D', '7595', 'D', 'E', 's', '8841', 'Y']
[EX A]: sED5957D7855

[EX Q]: 1, 4, ['t', '6037', 'I', '2769', 'C']
[EX A]: 9672I7306t

[EX Q]: 1, 22, ['V', '5231', '9941', 'N', '7613', '6541', '8109', '7861', 'a', '6345', 'm', 'c', '5725', 'B', 'p', '1585', 'l', 'V', 'Y', '1811', 'u', '6831', '5373', '7921', '8917', 'Q', '8919', 'L']
[EX A]:
1386u1181YVl5851pB5275cm5436a1687901814563167N14991325V