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.
8, 15, ['1015', '9239', '4121', '4961', '3155', '9613', 'k', '4449', 'i', 'b', '4561', 'E', 'O', '6339', 'e', 'w', 'M', '419', '3687', '9123', 'q', 'F', 'F', '1925', 'o', '5123']