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: 4, 5, ['3001', '661', 'S', 'N', '7919']

Answer: 9197N


Question: 16, 16, ['4793', '8319', 'F', 'L', 'W', 'f', '3003', 'P', 'w', '8231', 'J', 'D', '5091', '5577', 'w', '2211', 'Q', 'a', 'd', '3203', 'v', 'U', '7765', 'S', 'K', '2737', 'R', 'D', 'r', '5487']

Answer: 1122


Question: 20, 20, ['h', '9121', '5271', 'q', '2069', 'k', 'w', '8849', 'v', '9533', 'A', '8433', 'B', '947', '5015', '1761', '2989', 'a', 'Y', '5195']

Answer:
5915