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, 1, ['T', 'Y']
Example Output: T

Example Input: 10, 15, ['1135', 'N', '4053', 'k', 'V', '2313', '4827', '549', '23', '223', 'y', 'L', 'r', '7031', '7605']
Example Output: 50671307rLy322

Example Input: 5, 11, ['J', 'b', 'v', 'v', '6785', 'E', '4811', '3383', 'S', '8945', 'x', 'x', 'g', 'R']
Example Output:
x5498S38331184E5876