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, 6, ['1467', 'm', '9771', '6533', 'm', 'x', 'c', 'd', '3139']
Example Output: xm33561779m

Example Input: 1, 8, ['9669', '9577', '2831', 'Y', 'y', 'q', 'f', 'b', 'L', 'v', '5545', '7305']
Example Output: bfqyY138277599669

Example Input: 3, 7, ['R', '6949', 'Q', '1791', 'N', '1777', '4835', '6757', 'X', '8215', 'j', 'B', '4351']
Example Output:
53847771N1971Q