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.

Input: Consider Input: 1, 4, ['619', '9623', '5589', 'r', 'Z', '3065', 'p', '9567', '5065', '8433', '2807', 'b', '8271', 'k']

Output: r98553269916


Input: Consider Input: 9, 14, ['d', '7259', 'A', 'U', '7005', 'P', '8215', '8925', 'e', 'x', '1265', 'H', '4075', 'J', 'G']

Output: J5704H5621xe


Input: Consider Input: 1, 4, ['2043', '9517', '7359', 'X']


Output: X953771593402