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.

7, 12, ['4563', '7657', '4657', '1145', 'A', 'e', 'a', '5429', '3323', 'I', '569', 'R', '5013', 'U', 'v', 'l', 'h', 'z', 'e', 'D', 'n', 'h', 'h', '4673', '973']
R965I32339245a

3, 3, ['8097', '3167', '809']
908

17, 20, ['3649', '4261', 'D', '6727', '19', 'N', 'a', 'H', 'k', '7911', '4559', 'j', '4587', '5743', '3845', '1833', 'J', 'o', 'E', 'w', '1405']

wEoJ