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: 10, 12, ['p', '6907', 'D', 'B', 'z', 'S', '3197', 'b', 'K', 'B', '2925', 'i', 'U', 'y', '5577', '1065', 'e', '7763', 's', '9493']

Answer: i5292B


Question: 1, 8, ['X', 'I', '9323', 'A', 'v', 'd', '7685', 'Z', 'p']

Answer: Z5867dvA3239IX


Question: 16, 18, ['i', '975', '3175', '3251', 'e', 'X', 'j', '2703', 'N', 'K', 'z', 'e', 'F', 'l', 'p', '1029', 'O', 'B', 'c']

Answer:
BO9201