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, ['3913', 'o', 'M', '7097', 'z', '9731', '2741', '5047', '1667', 'T', 'm', '1853', '9043', '5881', '8893', '1807', 'C', '493', 'D', '6593', '8675', 'h', 'C', '2723', 'E', '3585', 'P', 'X', 'O', '8017']

86756593D493C1807