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.
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Question: 2, 3, ['X', '8243', '1209']

Answer: 90213428


Question: 8, 9, ['g', '9445', '8591', 'N', '4807', '9431', 'm', 'z', '3553', '7577', 'X', '3223']

Answer: 3553z


Question: 21, 28, ['8641', 'o', '1301', '8225', '8079', 'Y', 'O', '9571', 'n', 'Q', 'n', 'W', '6555', 'm', 'A', 'A', '4459', '5983', '5469', 'd', '6269', 'E', '2107', 'X', '8397', 'f', 'D', '9129']

Answer:
9219Df7938X7012E9626