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, 7, ['9969', 'u', '9811', 't', 'z', '8347', 'i', 'O', '5897']

Answer: i7438zt1189u


Question: 2, 6, ['2245', 'H', 'X', '339', '4389', '5331', '6865', '4541', '4845', '6071']

Answer: 13359834933XH


Question: 3, 4, ['2379', '2401', 'G', 'X', '6487', 'E']

Answer:
XG