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.
3, 8, ['b', '8977', '3013', '3493', 'a', '7271', 'e', '9007', 'w', 'Y', '9737', 'I', '7003', '5573', 'G', 'p', 'R', '6879', 't', 'K', 'k', '6213', '9861', 'P']