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: 5, 5, ['6131', '6209', 'H', 'g', '4529', '491', '2143', '6281']

Answer: 9254


Question: 10, 10, ['Z', 'Z', '2205', '7113', 'G', 'k', '973', 'I', 'n', '415', '1505']

Answer: 514


Question: 8, 9, ['1413', '7581', 'y', 'v', 'J', 'I', 'A', 'l', '8117', 'h', '6247', 'e', '3547', 'x', 'L']

Answer:
7118l