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: 10, 13, ['D', 'A', '4221', '7301', '1937', 'r', '5105', 'q', 'F', 'j', '9441', '6391', '7081', 'l', '6569', 'i', '8871', '5985']

Output: 180719361449j


Input: Consider Input: 15, 19, ['s', '2569', '1713', 't', 'R', 'G', '5779', 'o', '2667', 'W', '9283', '2419', '6745', 'f', 's', '4131', '8337', 'q', '5275', 'Y', 'N', 'k', 'K', '1937', '3983', '759', '471', 'J', '3213']

Output: 5725q73381314s


Input: Consider Input: 11, 14, ['169', 'o', '9753', '7973', '9409', 'O', '7633', '3559', '5267', '3315', 'G', 'G', 'l', 'Q', 'm', '7759', 'L', 'B', '7859', 'D', '5547']


Output: QlGG