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: 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: 3, 20, ['x', 'S', 's', 'a', '5077', 'D', '3979', 'I', '3129', 'R', '8517', 'r', 'l', 'K', 'N', '9701', '227', 'n', '9385', 'U']

Answer: U5839n7221079NKlr7158R9213I9793D7705as


Question: 5, 20, ['r', '6407', '6225', '7051', 'H', '233', 'I', 'J', '1301', 'A', '9127', 'R', 'K', '3635', '3897', 'u', 'F', 'g', 'K', 's', '3063', 'W', 'U', 'c']

Answer:
sKgFu79835363KR7219A1031JI332H