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.

5, 6, ['7565', '6525', '7421', 'u', '303', '1815', '273', '6725', 'i']
5181303

1, 3, ['9937', 'F', 'g', 'B', 'M', 'x', 'n', 'V', '4241', 'Z']
gF7399

4, 16, ['F', 'k', '3279', 'g', '2491', '9027', 'r', 'P', '279', 'D', '151', '8737', 'z', '97', '9909', 'e', 'Q', 'B']

e909979z7378151D972Pr72091942g