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: 1, 2, ['4211', '3035', '3071', '3941', 'D', '1851']
Example Output: 53031124

Example Input: 14, 20, ['9977', 't', 'Y', 'i', '7981', 'a', '1711', '3371', '9143', '3665', '1525', 'y', 'b', '379', 'k', 'T', 'Q', 'D', 'c', '1001', '551', 'Z']
Example Output: 1001cDQTk973

Example Input: 2, 13, ['3117', '9459', '8339', 'f', '145', '6997', '4171', '145', '7449', '9489', '7253', '5817', 'z', '1911', '6939', 'g', '3729', 'X', 'f', 'o', '3273', '9301', 't', '5437']
Example Output:
z718535279849944754117147996541f93389549