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, 21, ['u', 'Y', '4685', 'H', '919', '2329', '9461', 'A', 's', '7727', 'e', 'K', 'Y', '5829', '4079', '2063', 'D', 'F', 'l', 'j', 'l', '4649', '6853', 'P', 'V', 'v', 'r', 'C', 'A']

ljlFD2063