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: 6, 27, ['p', '5559', 'b', '1087', '2763', 'j', 'U', 'N', '7099', '3001', 'x', 'Y', '1631', '2729', '7503', 'I', '8149', 'm', 'M', 'n', 'H', 'F', 'E', '9513', '8697', 'H', 'e', '5691']

Output: eH79683159EFHnMm9418I305792721361Yx10039907NUj


Input: Consider Input: 1, 1, ['W', '3467']

Output: W


Input: Consider Input: 10, 12, ['v', '2247', '1325', 'W', 'C', '7757', 'O', '9887', '3097', '3167', '5331', '9975', 'w', 'A', 'l', '8413', 'n', '257', '749', 'k', '6055', 'O', '8811', '2267', '1363', 'I', '8185']


Output: 579913357613