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: 22, 23, ['9853', '3839', '2279', 'o', 'Y', '6513', '4505', '1861', 'm', '8009', 'i', '8855', '6777', '3055', '4055', '3903', '5639', 'y', '579', '7271', '8021', 'R', '4547', '1439', '29', '1611', 't', '6279']

Answer: 7454R


Question: 1, 4, ['63', '5429', '5563', '2045', '875', '7163', '1869']

Answer: 54023655924536


Question: 6, 10, ['9991', 's', '2553', 'T', 'O', 't', '6525', '2703', '2527', '439', 'm', '7999', 'F', 'p', '3797', 'D', '5479', '2213', '1101', '4751', 'T', 'X', 'c', 'c', 'e', '6137']

Answer:
934725230725256t