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: 5, 21, ['3995', '845', '9661', '9663', 'b', 'T', '7841', '5257', 'g', 'f', 'j', 'H', '7717', 'k', 'N', 'u', '61', '4951', 'y', '3149', '9813', 'Y', '6159', 'q']

98133149y495161uNk7717Hjfg52577841Tb