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: 16, 19, ['P', '7669', 'y', 'w', 'J', 'F', '7963', 'P', 'A', '2245', 'S', 'i', 'V', '2807', '7451', '6569', 'y', '6041', '7971', '8293']

79716041y6569