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, ['9883', '9371', '6733', 'S', 'T', '7809', 'g', 'v', '5695', '7909', 'u', 'q', 'Y', 'm', 'e', '4393', '381', '4247', 'a']