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.
10, 25, ['3767', 'M', '1793', '2053', 'E', 'T', 'f', '767', 'W', 'v', 'K', 'L', 'm', '3357', 'J', 'Y', '2327', 'H', '4785', 'O', 'F', 'r', '8439', '2547', '4223', '8771']