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, 5, ['1817', '3607', 'J', 'p', 'H', '639', '601', 'f', '8613', 'q', '1999', '4447', 'g', '8449', '1125', '1103', 'Y', 'p', 'Z', '5707', 'p', 'Q', 'a', '3889', 'Z', '5393', 'd', '9023', '4153']

Answer: HpJ70637181


Question: 9, 13, ['z', '2819', '4327', 's', '9271', '3601', '2475', 'L', '7129', '7513', '6649', '9333', '9507', '2411', 'L', '1905', '7315', '6663', '4511', 'h', 'h', '4345', 'd', 'I']

Answer: 70593339946631579217


Question: 8, 21, ['9651', 'f', '8321', 'f', 'c', '6891', '6805', '4869', 'z', '7867', 'M', '4437', '4051', '1453', '3577', 'p', '7393', 'E', '5609', '8231', 'o', '3853', 'U', '3131', 'P', 'P', '1009', '5897', 'l', '9097']

Answer:
o13289065E3937p7753354115047344M7687z9684