Detailed Instructions: 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.
Q: 8, 17, ['i', 'J', '9823', 'z', 'U', 'z', '5877', '7777', '6537', '9407', 'A', '745', 'V', 'b', '7755', '9379', '2621', 'f', '4917']
A:
126297395577bV547A704973567777