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.

Input: Consider Input: 2, 2, ['z', '3345', 'l', '2657', 'J', '4313', 'K', '5307', '9087']

Output: 5433


Input: Consider Input: 21, 28, ['8641', 'o', '1301', '8225', '8079', 'Y', 'O', '9571', 'n', 'Q', 'n', 'W', '6555', 'm', 'A', 'A', '4459', '5983', '5469', 'd', '6269', 'E', '2107', 'X', '8397', 'f', 'D', '9129']

Output: 9219Df7938X7012E9626


Input: Consider Input: 9, 15, ['n', '8063', 'M', 'T', '573', '5199', 'F', '7747', 'L', '2825', '5201', 'i', '739', 'm', '9003', 'C', 'M', 'n']


Output: 3009m937i10255282L