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.

4, 5, ['B', 'H', 'y', 'y', 'K']
Ky

19, 23, ['r', '521', '2357', 'j', 'R', 'a', '4853', 'q', '2383', 'i', '8071', '3715', '7533', '1407', 'e', '9495', 'k', '3789', 'P', 'c', '2565', 'q', '4565', 'P']
5654q5652cP

10, 13, ['3267', '7861', '8575', 'k', 'd', '863', 'O', 'r', 'p', 't', 'F', 'h', 'z', '997', 'f', '2421', '829', '9117', 'o']

zhFt