Definition: 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.
Input: 15, 16, ['a', 'u', '7487', 'n', 'J', '7099', '5871', 'x', 'P', '2309', '4279', 'O', '7249', '8799', 'f', 'h', '3181', 'Z', '8949', 'L', '3409', '6687', '2441']

hf