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: 4, 20, ['t', '6553', '4263', '3543', 'M', '5741', '3193', '2439', '3713', '5477', 'u', '1819', 'L', '6943', '6765', '7893', '9841', '4647', '7327', 'e', '7751', '4175', '6795', '6929', 'v']

e732746479841789367656943L1819u54773713243931935741M3543