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, 2, ['8165', 'R', 'y', '9865', 'z', 'Z', '9719', '7485', '4049', 'm', 'V', '67', '6101', '5057', 'g', 'l', '6809', '1983', '1091', 'u', '9835']
Example Output: R5618

Example Input: 2, 9, ['9889', 'H', 'e', 'R', 'd', '8771', 'M', '5589', 'V', 'm', '8625', '6173', '8077', '1147', '1515', '8759', '5103']
Example Output: V9855M1778dReH

Example Input: 15, 18, ['V', '6955', 'f', 'I', '6321', '7193', 'M', '5599', '5927', 'L', 'q', '509', '39', 'P', '8867', '5273', '7211', 'L', 'd', 'q', 'J', 'u', 'H', '563', '5159', '7589', 'x', 's', 'N', 'Q']
Example Output:
L112737257688