Given the task definition and input, reply with output. 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.

16, 21, ['U', '7401', 'o', '5661', 'b', 'b', '1943', 't', '2745', 'H', '8225', '3975', 'o', '9425', 'A', '8253', 'V', 'n', 'Z', 'K', '5533', 'y', 'E', '5339', 'j', 'T']

3355KZnV3528