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, ['6875', 'D', 'r']

Answer: rD


Question: 22, 26, ['O', '9947', '2663', '8883', 'o', '1499', 'u', 'n', 's', 'k', '4637', 'e', 'G', '8807', '6975', '3263', '4157', '8213', '5235', 'H', '4915', '7443', 'i', 'h', 'j', '6837', '983', '8793']

Answer: 7386jhi3447


Question: 3, 3, ['4463', 'a', '7791', 'I', 'N', 'e', 'U', 'V', '9411', 'k', 'a', '6725', '9275', '5957', 'M', '8235', '8637', '607', 'x', '5049', 'N', '7077', '6009', 's', 'Q']

Answer:
1977