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.

Example Input: 3, 12, ['2159', 'f', 'u', '2675', '7357', '9325', '1275', '8897', 'I', '2095', '5835', '577', 'g', '2783', '7843', '8517', '4185', '5847', '2645', '2357', 'l', 'v', '2239', '141', 'o', '2529', '7977', '8445', '2363']
Example Output: 77553855902I79885721523975375762u

Example Input: 3, 6, ['A', '6949', '2045', '119', '1373', '9613']
Example Output: 316937319115402

Example Input: 7, 18, ['c', 'v', '3085', 'C', 'L', '289', 'g', 'Z', '8963', '967', 'f', '7171', '5457', '8209', '7873', '6647', '7429', 'J', '9225', 'o', '4077', 'P', 'A', 'B', '3877']
Example Output:
J924774663787902875451717f7693698Zg