In this task, you are given inputs 'i', 'j', and A, where 'i' and 'j' are integers and A is a list. A list is shown by two brackets and comma-separated numbers and characters inside, like ['1', '12', 'l']. You need to concatenate all elements of A from the ith element to the jth element, and then reverse the resulting 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 reverse first and then concatenate.

2, 8, ['O', '4833', '7055', '9891', '9117', '1571', 'S', 'Z', '7741', 'W', 't']
ZS17517119198955073384

6, 10, ['P', '6217', 'k', '761', 'L', 'r', '1897', '1503', '7353', '1055', '6661', 'p', 'p', '4313', 'i', 'P', '5081', '3723', 'x', '8455', 'D', 'l', '1379']
5501353730517981r

11, 18, ['3185', 'w', 'E', 'm', '7625', '6513', '2025', '2581', '4957', 'X', '8091', '643', '6903', 'f', '1239', '1045', 'D', '7365', '9829', 'l', 'C', 'B', 'd', 'z', 'A', '2017', '1913']

5637D54019321f30963461908