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, 7, ['e', 's', '7009', 'z', 'I', '8649', '6405', '551', 'C', '5325', 'V', 'i', 'w', 'K', 'w', 'R']
Example Output: 50469468Iz9007s

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

Example Input: 13, 27, ['6849', 'u', 'z', 'W', '5213', 'r', 'A', 'V', '9535', 'S', 'J', 's', '4725', '7367', '9983', 'R', 'e', '6037', '9181', 'A', '6555', 'f', 'x', '3467', '6671', '6409', '17']
Example Output:
71904617667643xf5556A18197306eR389976375274