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.
4, 8, ['s', '4361', 'w', 'X', 'U', '7685', 'D', 'L', 'q', 'u', 'z', 'P', '2269', 'v', '7453', 'e', '4547', 'w', 'W', 'A', '6281', 'n', '6927', '7513', '469', 'q', 'B']