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: 9, 16, ['U', 'r', 'm', 'N', '215', 'E', 'u', '1861', '8517', 'Y', '8861', 'W', 'P', 'l', '3901', '1279', 'R', 'F', 'C', '8461', 'm', 'I', '7023', '4335', '6853', '5495', 'N', '6037', '1999', '4605']

12793901lPW8861Y8517