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.
6, 14, ['8877', 'F', '1071', 'Q', 'k', 'U', '5861', '9355', '5951', 'a', '9957', '5689', '7803', '6313', '7177', 'O', 'n', '9983', '8833', 'H', 'N', '1593', 'C', '169', 'L', 'A', 'B', 'a', '2555', 'C']