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, 16, ['6623', 'E', 'S', '8679', '7465', '2769', 'G', '9635', 'Z', 'Y', '6593', '9535', '5247', '2185', '7071', 'P', '7897', 'm']

Answer: P17075812742553593956YZ5369G967256479768SE


Question: 2, 3, ['2923', 'F', '4033', 'V']

Answer: 3304F


Question: 1, 4, ['K', '1285', 'z', 'd', '9605', '797', '5431', 'H', 'B', 'k']

Answer:
dz5821K