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: 8, 22, ['C', 'b', 'j', 'k', '6491', '8079', 's', '4069', '9033', 'g', 'U', '8365', '8623', 'E', '4363', '69', 'g', '8485', 'd', '3857', 'X', '7199', '5909', '2251']

7199X3857d8485g694363E86238365Ug90334069