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: 21, 29, ['f', 's', 'N', '9129', '5101', 'N', '6185', '2481', 'C', '9091', 'M', 'T', '3881', 'l', 'k', '6307', '7347', '5565', '7071', '6301', '8235', 'I', '6397', '8727', '5845', '2085', 't', 'm', '7027']

7027mt2085584587276397I8235