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.
2, 15, ['P', 'h', '8471', '3667', 'R', 'h', '7945', 'I', '8079', 'F', '5987', '5099', 'v', 'U', '4481', 'C', 'a', 'R', '1197', '2401', 'b', 'C', 'z', 'u', '1877', '1233', 'Z', '1769', 'w', 'z']