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: 1, 3, ['2119', '2237', 'O']

Output: O73229112


Input: Consider Input: 2, 2, ['6099', 'r']

Output: r


Input: Consider Input: 16, 22, ['5575', 'X', '6999', 't', '9675', '5023', '9743', 'Y', 'K', '8389', 'D', 'T', 'J', 'x', '6047', 'y', 'X', 'I', '4553', 'm', '8577', '6911', '6545', 'o', 'm', 'R', '2545', '2951', '4521', 'm']


Output: 11967758m3554IXy