In this task, you are given inputs i, j, and A, where i and j are integers and A is a list. You need to find all elements of A from the ith element to the jth element, reverse the order in which they occur, and then concatenate them to output the resultant 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 concatenate the elements and then reverse the string.
--------
Question: 1, 3, ['u', 'D', '6391']

Answer: 6391Du


Question: 16, 20, ['D', 'N', 'r', 'F', 'G', 'p', '4865', 'c', '7743', '6781', '8771', 'o', 's', '2061', '8445', 'O', 't', 'y', 'n', 'p', '5101']

Answer: pnytO


Question: 1, 6, ['3687', 'a', 'V', '9377', 'h', '6057', '4623', '2519', '261', 'f', 't', '8617']

Answer:
6057h9377Va3687