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, 10, ['1183', '2299', 'O', '963', 'E', '9319', 'L', 'R', '1293', '8707', 'n', 'D', '6721', '2219', '3293', 'J', '4673', '325', '285', '5331']
Example Output: 70783921RL9139E369O9922

Example Input: 4, 9, ['g', '6285', 'B', 'l', '5153', 'n', '9751', 'X', 'w', '2291', 'S']
Example Output: wX1579n3515l

Example Input: 11, 12, ['U', '1701', '5595', '3373', 'b', '1883', 'k', '7307', 'T', 'Z', 'u', '7327', '2621', '753', 'N', '2111', 'C', 'E', '5409', '1123']
Example Output:
7237u