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: 9, 17, ['q', 'L', '2499', 's', 'P', 'e', 'C', '2667', '4561', '9953', '9901', '61', '3901', '3237', '1169', '5841', 'E', '8981', 'Q', 'W', 'B', '5513', 'F', 'D', 'g', '5463', 'v', '931', 'P']
Example Output: E148596117323109316109935991654

Example Input: 3, 5, ['j', '239', '9689', 's', 'C', 'w']
Example Output: Cs9869

Example Input: 7, 23, ['f', '7821', 'o', '7607', '7487', '8455', '8195', 'F', 'r', '2727', 'w', 'z', 'C', 'L', 'h', 'e', '4503', 'l', '2325', 'b', 'P', 'z', '2409', 'y', 'j', '8931', '3653', 'z', 'c', '3795']
Example Output:
9042zPb5232l3054ehLCzw7272rF5918