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.
19, 22, ['5685', 'Q', 'D', 'C', 'K', 'e', '4155', '7853', 'A', '2609', 'D', 'o', '6769', '2493', 'X', 'y', '6317', 'j', '6315', '4035', '3547', '7727', 'X', 'p', 't', '4359', 't', '6387']