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: 8, 18, ['O', 'a', 'w', 'f', 'E', 'u', '1205', '3349', '9805', 'M', 'Z', '5239', 'u', '203', '9193', '8629', '3209', 'v', 'b', '9661', '1039', '251', '1863', 'b']
Example Output: v320986299193203u5239ZM98053349

Example Input: 5, 12, ['7745', 'U', 'H', '6603', '3997', 'C', '9985', '7383', '3853', 'D', '6269', 'r', '3309', 'a', '7801', 'i', '5357']
Example Output: r6269D385373839985C3997

Example Input: 10, 16, ['j', 'b', 'g', 'q', 'q', 'M', '7015', '2731', 'V', '2155', '4909', '3213', '6291', '1185', '283', 'Y', 'Z', 's', 'S', '5155', '2137']
Example Output:
Y28311856291321349092155