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: 2, 3, ['G', 'G', '7823', '8645', 'k', '1369', '7495', 'V', '2195', 'x', '3061', 'k', '7539', 'H', '8197', 'S', '7969', '9259', 'j']
Example Output: 3287G

Example Input: 2, 5, ['1987', '3507', '839', '3509', '9857', 'V', '9987', 'g', 'G', '7295', 'v', 'b', 'o', 'Q', 'Q', 'x', '3295', '9917', 'R', '221']
Example Output: 758990539387053

Example Input: 3, 4, ['1509', '3133', '4675', '3877', '6961', 'A', 'j', '4077', 'x']
Example Output:
77835764