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, 5, ['n', '8897', '6611', '2857', 'p']
Example Output: p758211667988

Example Input: 2, 11, ['6519', 'l', '6577', 'z', '4271', 'R', 'O', '7809', 'K', 'V', '4531']
Example Output: 1354VK9087OR1724z7756l

Example Input: 1, 5, ['k', '67', '7601', 'o', 'j', 's', '869', '1763', '8003', 'y', '2821']
Example Output:
jo106776k