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, 19, ['3925', '2263', 'U', 'W', 'L', '1333', '3395', 'h', '9825', '7473', 'f', 'D', 'D', 'z', '1903', '8935', '1289', 'E', '8699', '5347', '3817', '3009']
A:
9968E982153983091zDDf37475289h