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: 4, 5, ['B', 'H', 'y', 'y', 'K']

Answer: Ky


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

Answer: 13359834933XH


Question: 8, 11, ['s', 'Y', '3209', '2275', '4437', 's', '6553', 'n', 'n', 'H', '6883', 'v', '4779']

Answer:
3886Hnn