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, 12, ['f', '1687', '819', 'N', 'w', '6089', '6725', 'p', '8625', '5327', 'r', '8103', 'd', '1441', 'v', 'k', '3407', '5891', 'X', '6419', 'e']

Answer: 3018r72355268p52769806wN9187861


Question: 1, 1, ['f', 'E', 'G', '9657']

Answer: f


Question: 1, 4, ['a', 'y', '6981', '6783', '2945', 'T', 'L', '7713', 'Q', '251', 'm', '3179', 'r', '8677', '205', '6015', '3157', 'B', 'G', 'p', '7925', '8223', 'd']

Answer:
38761896ya