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]: 5, 9, ['7453', '7415', 's', 'O', '1161', 'G', 'N', '5925', '3367', 'f', '7739', 'b', 'y', 'o', '2431', 'Y']
[EX A]: 76335295NG1611

[EX Q]: 5, 9, ['D', 'o', 'D', '7569', '2797', '7801', 'T', 'N', '2223', '7379', 'Y', '9073', 'Z', 'c', 'S', 'a', 'R', '7403', '9927', 'O', '2715', '1133', '9897', 'U']
[EX A]: 3222NT10877972

[EX Q]: 2, 17, ['j', 'x', '4269', '277', '4919', 'U', 'o', 'g', '2411', 'Y', '7345', '8651', '2449', '1257', 'R', '5411', 'L', 'm', '2047', 'u', 'Z']
[EX A]:
L1145R7521944215685437Y1142goU91947729624x