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.
11, 15, ['9425', '7003', '8889', 'u', '1751', '5959', '3289', 'L', 'y', 'h', '1981', 'Q', '3453', '615', '6575', '715', 'l', '7789', '5585', '6505', '6445', '7415', 'B', '4247', '7063', '2717', 'W']