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, 8, ['1325', 'c', '7801', 'm', '1793', 'j', '215', '831', '6259', '4001', 'Q', '3735', '29', 'C', '3215', 'M', 'e', 'E', 'L']

831215j1793