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.

Example Input: 1, 8, ['L', '9991', 'J', '5871', 'X', '1467', 'V', 'p', '9893', 'S', '7419']
Example Output: pV1467X5871J9991L

Example Input: 5, 17, ['F', 'a', '241', '6537', 'X', 'e', 's', '7371', 'g', 'i', 'Y', 'q', '8647', '9981', '665', 'B', 'B', 'I', '5655', 'y']
Example Output: BB66599818647qYig7371seX

Example Input: 4, 21, ['v', '8055', 'G', '5043', '1529', 'i', '767', '9549', '6555', '5833', 'T', 'O', 'q', '591', '1241', 't', 'B', 'W', 'A', '1071', '7589', 'w', '8617', '8113', '8513', '191']
Example Output:
75891071AWBt1241591qOT583365559549767i15295043