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: 6, 10, ['4631', 'q', '4689', 'w', '499', '3383', '8091', '7699', 'H', '6359', 'I', '267', 'v', '3295', 'H', '4815', 'u', 'o', '5023', 'n', '9471', '7435']

Output: 9536H996719083833


Input: Consider Input: 2, 11, ['7391', '6663', '477', '4991', '1033', 'c', 'X', 's', '2517', 'i', 'M', '8437', 'J']

Output: Mi7152sXc330119947743666


Input: Consider Input: 13, 18, ['2559', '2995', '6955', 'b', 'T', '9831', 'n', '9447', 'W', 'P', '329', '3171', '1171', 'Q', 'Q', 'A', '1793', '7045', '1193', '8991', '4043', '4127', 't']


Output: 54073971AQQ1711