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: 1, 3, ['9937', 'F', 'g', 'B', 'M', 'x', 'n', 'V', '4241', 'Z']

Answer: gF7399


Question: 1, 5, ['M', 'H', '7813', '6149', 'u', 't', '3643', '5901', 'A', 'g', '3929', 'V']

Answer: u94163187HM


Question: 1, 5, ['g', '6441', '2683', 'm', 'M', 'f', 'g', '5561', 'p', 'g', 'Y', 'X', '1571']

Answer:
Mm38621446g